Shipulin, Ilya A
PhD in Physics and Mathematics
🥼
🥼
Ilya can become your supervisor
If you would like to work under his/her guidance, please write a message or contact him/her on social media.
Authorization required.
Please confirm your email.
Thanks for signing up! Before getting started, could you verify your email address by clicking on the link we just emailed to you? If you didn't receive the email, we will gladly send you another.
🤝
🤝
Ilya is looking for opportunities for scientific collaboration
If you would like to do joint research with him/her, write a message or contact him/her on social media.
Authorization required.
Please confirm your email.
Thanks for signing up! Before getting started, could you verify your email address by clicking on the link we just emailed to you? If you didn't receive the email, we will gladly send you another.
Publications
13
Citations
62
h-index
6
Research interests
Education
Technische Universität Dresden
2019 — 2023,
Postgraduate, School of Science
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2016 — 2020,
Postgraduate
Southern Federal University
2014 — 2016,
Master, INEP
Southern Federal University
2010 — 2014,
Bachelor, INEP
- Journal of Physics and Chemistry of Solids (1)
- Journal of Physics: Conference Series (1)
- Key Engineering Materials (1)
- Materials (2)
- Materials Research Express (1)
- Nature Communications (1)
- Physica Scripta (1)
- Physical Review B (1)
- Physical Review Letters (1)
- Superconductor Science and Technology (3)
Nothing found, try to update filter.
Shipulin I., Nielsch K., Hühne R.
Abstract
We report the successful epitaxial growth and comprehensive study of structural and superconducting properties of (Nd,Eu,Gd)Ba2Cu3O7−δ
films with a thickness of up to 1.2 μm prepared by on-axis pulsed laser deposition on SrTiO3 (STO) single crystals as well as on ion-beam-assisted deposition (IBAD) and rolling-assisted biaxially textured substrate (RABiTS)-based metal templates. X-ray diffraction demonstrates the epitaxial quality of the grown films on both single crystalline substrates and metal-based templates. In addition, no significant changes in surface morphology were found with increasing thickness for films on all types of substrates. On all substrates, a T
c value of about 89 K was observed, however, significant inhomogeneities indicating small superconducting volume were found for all films on STO. In general, the best transport characteristics over a wide range of magnetic fields and temperatures were observed for thicker films on IBAD-MgO and RABiTS templates, respectively. The J
c values at 77 K for the films on IBAD-MgO templates are comparable to YBCO films, but inferior in the low temperature region and high magnetic fields, whereas the films on RABiTS and especially on STO showed much lower J
c over the entire temperature and magnetic field range. A maximum pinning force of about 7 GN·m−3 at 65 K was found for the 900 nm thick films on IBAD-MgO template. In addition, the pinning mechanism seems to depend on both temperature and type of substrate. In general, no correlation between local microstructure and transport characteristics was revealed for NEG films on both metal templates.
Khasanov R., Ramires A., Grinenko V., Shipulin I., Kikugawa N., Sokolov D.A., Krieger J.A., Hicken T.J., Maeno Y., Luetkens H., Guguchia Z.
We report on measurements of the in-plane magnetic penetration depth (${\ensuremath{\lambda}}_{\mathrm{ab}}$) in single crystals of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ down to $\ensuremath{\simeq}0.015\text{ }\text{ }\mathrm{K}$ by means of muon-spin rotation-relaxation. The linear temperature dependence of ${\ensuremath{\lambda}}_{\mathrm{ab}}^{\ensuremath{-}2}$ for $T\ensuremath{\lesssim}0.7\text{ }\text{ }\mathrm{K}$ suggests the presence of nodes in the superconducting gap. This statement is further substantiated by observation of the Volovik effect, i.e., the reduction of ${\ensuremath{\lambda}}_{ab}^{\ensuremath{-}2}$ as a function of the applied magnetic field. The experimental zero-field and zero-temperature value of ${\ensuremath{\lambda}}_{\mathrm{ab}}=124(3)\text{ }\text{ }\mathrm{nm}$ agrees with ${\ensuremath{\lambda}}_{\mathrm{ab}}\ensuremath{\simeq}130\text{ }\text{ }\mathrm{nm}$, calculated based on results of electronic structure measurements reported in A. Tamai et al. [High-resolution photoemission on ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies, Phys. Rev. X 9, 021048 (2019)]. Our analysis reveals that a simple nodal superconducting energy gap, described by the lowest possible harmonic of a gap function, does not capture the dependence of ${\ensuremath{\lambda}}_{\mathrm{ab}}^{\ensuremath{-}2}$ on $T$, so the higher angular harmonics of the energy gap function need to be introduced.
Shipulin I., Stegani N., Maccari I., Kihou K., Lee C., Hu Q., Zheng Y., Yang F., Li Y., Yim C., Hühne R., Klauss H., Putti M., Caglieris F., Babaev E., et. al.
AbstractMaterials that break multiple symmetries allow the formation of four-fermion condensates above the superconducting critical temperature (Tc). Such states can be stabilized by phase fluctuations. Recently, a fermionic quadrupling condensate that breaks the Z2 time-reversal symmetry was reported in Ba1−xKxFe2As2. A phase transition to the new state of matter should be accompanied by a specific heat anomaly at the critical temperature where Z2 time-reversal symmetry is broken ($${T}_{{{{{{{{\rm{c}}}}}}}}}^{{{{{{{{\rm{Z2}}}}}}}}} \, > \, {T}_{{{{{{{{\rm{c}}}}}}}}}$$
T
c
Z2
>
T
c
). Here, we report on detecting two anomalies in the specific heat of Ba1−xKxFe2As2 at zero magnetic field. The anomaly at the higher temperature is accompanied by the appearance of a spontaneous Nernst effect, indicating the breakdown of Z2 symmetry. The second anomaly at the lower temperature coincides with the transition to a zero-resistance state, indicating the onset of superconductivity. Our data provide the first example of the appearance of a specific heat anomaly above the superconducting phase transition associated with the broken time-reversal symmetry due to the formation of the novel fermion order.
Grinenko V., Sarkar R., Ghosh S., Das D., Guguchia Z., Luetkens H., Shipulin I., Ramires A., Kikugawa N., Maeno Y., Ishida K., Hicks C.W., Klauss H.
Muon spin rotation/relaxation ($\ensuremath{\mu}\mathrm{SR}$) and polar Kerr effect measurements provide evidence for a time-reversal symmetry breaking (TRSB) superconducting state in ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$. However, the absence of a cusp in the superconducting transition temperature (${T}_{\mathrm{c}}$) vs stress and the absence of a resolvable specific heat anomaly at TRSB transition temperature (${T}_{\mathrm{TRSB}}$) under uniaxial stress challenge a hypothesis of TRSB superconductivity. Recent $\ensuremath{\mu}\mathrm{SR}$ studies under pressure and with disorder indicate that the splitting between ${T}_{\mathrm{c}}$ and ${T}_{\mathrm{TRSB}}$ occurs only when the structural tetragonal symmetry is broken. To further test such behavior, we measured ${T}_{\text{c}}$ through susceptibility measurements and ${T}_{\text{TRSB}}$ through $\ensuremath{\mu}\mathrm{SR}$, under uniaxial stress applied along a $\ensuremath{\langle}110\ensuremath{\rangle}$ lattice direction. We have obtained preliminary evidence for suppression of ${T}_{\text{TRSB}}$ below ${T}_{\text{c}}$, at a rate much higher than the suppression rate of ${T}_{\text{c}}$.
Holleis S., Shipulin I.A., Hühne R., Bernardi J., Eisterer M.
Abstract
REBCO based coated conductors (CCs) are a viable alternative to conventional superconductors for many applications, therefore the optimization of their current carrying capacity is an ongoing process. A promising route for the increase in performance is the introduction of artificial pinning centers such as BaHfO3 (BHO) nanoparticles. However, granularity still imposes a substantial performance limitation, especially in REBCO CCs deposited on RABiTS based templates, as the critical current density is severely reduced by moderate misalignment angles of adjacent grains. A combined study of scanning Hall probe microscopy and electron microscopy of undoped and BHO-doped YBa2Cu3O7-δ
(YBCO) films on technical templates shows that BHO-doping leads to a denser microstructure of the superconducting layer and higher global and local critical current densities. The statistical evaluation of local current maps allows for a quantification of the magnetic granularity where a reduction of granularity with increasing film thickness, doping and increasing temperature is found. In particular, the dependence of granularity on the film thickness and enhanced film growth through BHO-doping shows the potential for further optimization of YBCO films on RABiTS based templates.
Shipulin I.A., Anna Thomas A., Holleis S., Eisterer M., Nielsch K., Hühne R.
We report the local structural and superconducting properties of undoped and Ag-doped YBa2Cu3O6+x (YBCO) films with a thickness of up to 1 µm prepared by pulsed laser deposition on SrTiO3 (STO) single crystals and on ion-beam-assisted deposition (IBAD) and rolling-assisted biaxially textured substrate (RABiTS)-based metal templates. X-ray diffraction demonstrates the high crystalline quality of the films on both single crystalline substrates and metal-based templates, respectively. Although there was only a slight decrease in Tc of up to 1.5 K for the Ag-doped YBCO films on all substrates, we found significant changes in their transport characteristics. The effect of the silver doping mainly depended on the concentration of silver, the type of substrate, and the temperature and magnetic field. In general, the greatest improvement in Jc over a wide range of magnetic fields and temperatures was observed for the 5%Ag-doped YBCO films on STO substrates, showing a significant increase compared to undoped films. Furthermore, a slight Jc improvement was observed for the 2%Ag-doped YBCO films on the RABiTS templates at temperatures below 65 K, whereas Jc decreased for the Ag-doped films on IBAD-MgO-based templates compared to undoped YBCO films. Using detailed electron microscopy studies, small changes in the local microstructure of the Ag-doped YBCO films were revealed; however, no clear correlation was found with the transport properties of the films.
Holleis S., Anna Thomas A., Shipulin I.A., Hühne R., Steiger-Thirsfeld A., Bernardi J., Eisterer M.
Abstract
Iron-based superconductors are a popular candidate in the search for affordable and simple superconductors for high-field applications. In particular, the relaxed texture requirements fuel hope that films deposited on RABiTS with simple buffer layer architectures could enable cheap coated conductors. We find that a single Yttrium oxide buffer layer can act as a suitable diffusion barrier and epitaxial Fe(Se,Te) thin films were successfully grown by pulsed laser deposition. An analysis of the local current distribution by means of scanning Hall probe microscopy reveals current densities exceeding 1 MA cm−2, however, granularity still seems to be an issue. Transmission electron microscopy images and analysis by transmission Kikuchi diffraction show that the out-of-plane orientation of underlying Ni-W grains in the substrate has a severe impact on the growth of Fe(Se,Te) films.
Anna Thomas A., Shipulin I.A., Holleis S., Eisterer M., Nielsch K., Hühne R.
In this paper, we compare epitaxial Fe(Se,Te) thin films grown by pulsed laser deposition on CaF2, SrTiO3, MgO single crystals as well as on different metallic templates having a CeO2based top surface. In particular, we performed a detailed structural and superconducting analysis. X-ray diffraction studies showed highly textured films on all templates. The superconducting transition temperatures are between 21 K and 14 K for Fe(Se,Te) films on CaF2 and on MgO single-crystal substrates, respectively, whereas films on the metal templates show Tc values up to 18 K. The critical current density (Jc) was determined from magnetization loops in fields up to 7 T. Calculations in the framework of the extended critical state model showed Jc values over 2 MA/cm2and 0.9 MA/cm2at 5 K in self-field on single-crystal substrates and metal templates substrates, respectively. Detailed TEM studies reveal smooth layers on all templates. Whereas small defects were found in films on single crystals, pronounced grain boundaries with higher misorientation angle were visible in the layers on metallic templates.
Shipulin I., Richter S., Thomas A.A., Nielsch K., Hühne R., Martovitsky V.
We performed a detailed structural, magnetotransport, and superconducting analysis of thin epitaxial Ba(Fe1−xNix)2As2 films with Ni doping of x = 0.05 and 0.08, as prepared by pulsed laser deposition. X-ray diffraction studies demonstrate the high crystalline perfection of the films, which have a similar quality to single crystals. Furthermore, magnetotransport measurements of the films were performed in magnetic fields up to 9 T. The results we used to estimate the density of electronic states at the Fermi level, the coefficient of electronic heat capacity, and other electronic parameters for this compound, in their dependence on the dopant concentration within the framework of the Ginzburg–Landau–Abrikosov–Gorkov theory. The comparison of the determined parameters with measurement data on comparable Ba(Fe1−xNix)2As2 single crystals shows good agreement, which confirms the high quality of the obtained films.
Shipulin I., Richter S., Anna Thomas A., Brandt M., Aswartham S., Hühne R.
Shipulin I.A., Zamburg E.G., Ageev O.A.
We have developed a mathematical model of electrophysical and gas sensitive properties of nanosized ZnO film during chemisorption of gas molecules of CO, CO2, CH4, and NO2 on its surface and figured out regularities of influence of thickness of depletion layer of nanosized ZnO films on their electric and gas sensitivity properties. We have determined optimal range of working temperatures and thicknesses of nanosized ZnO films for detecting CO, CO2 CH4, and NO2 with maximum gas sensitivity and selectivity and theoretical investigated gas-sensitivity properties of nanosized ZnO films.
Ageev O.A., Zamburg E.G., Kolomiytsev A.S., Suchkov D.O., Shipulin I.A., Shumov A.V.
In the experiments we defined modes, and developed the technology of formation of elements of input-output laser emission and microlens of integrated acousto-optic cell by Pulsed Laser Deposition and Focused Ion Beams by using nanotechnology cluster complex, allowing controlled creation of elements in a single process cycle.
Nothing found, try to update filter.
Aleshchenko Y.A., Muratov A.V., Zhukova E.S., Kadyrov L.S., Gorshunov B.P., Ummarino G.A., Shipulin I.A.
Golic A., Timoshuk I., Babaev E., Svistunov B.
While the properties of standard (single-component) superfluids are well understood, principal differences arise in a special type of multicomponent systems—the so-called Borromean supercounterfluids—in which (i) supertransport is possible only in the counterflow regime and (ii) there are three or more counterflowing components. Borromean supercounterfluids's correlation and topological properties distinguish them from their single- and two-component counterparts. The component-symmetric case characterized by a distinctively different universality class of the supercounterfluid-to-normal phase transition is especially interesting. Using the recently introduced concept of compact-gauge invariance as the guiding principle, we develop the finite-temperature description of Borromean supercounterfluids in terms of an asymptotically exact long-wave effective action. We formulate and study Borromean XY and loop statistical models, capturing the universal long-range properties and allowing us to perform efficient worm algorithm simulations. Numeric results demonstrate perfect agreement with analytic predictions. Particularly instructive is the two-dimensional case, where the Borromean nature of the system is strongly manifested while allowing for an asymptotically exact analytic description.
Published by the American Physical Society
2025
Ji H., Yuan N.F.
Inspired by the recent experiments in monolayer iron-based superconductors, we theoretically investigate the properties of a two-dimensional multiband superconductor under magnetic fields, focusing on two aspects. First, for vortex bound states under out-of-plane magnetic fields, the spatial anisotropy and positions of electron density peaks are associated with interband couplings. Second, under in-plane magnetic fields, even with inversion symmetry, a Ising-type spin-orbit coupling is allowed, leading to an enhanced in-plane upper critical field. Applications to other two-dimensional multiband superconductors are also discussed.
Published by the American Physical Society
2025
Zheng Y., Luo A., Shen Y., He M., Zhu Z., Liu Y., Zhang W., Sun H., Deng Y., Yuan Z., Pan J.
Piperno L., Celentano G.
Mechanically flexible substrates are increasingly utilized in electronics and advanced energy technologies like solar cells and high-temperature superconducting coated conductors (HTS-CCs). These substrates offer advantages, such as large surface areas and reduced manufacturing costs through reel-to-reel processing, but often lack the surface smoothness needed for optimal performance. For HTS-CCs, specific orientation and high crystalline quality are essential, requiring buffer layers to prepare the amorphous substrate for superconductor deposition. Techniques, such as mechanical polishing, electropolishing, and chemical-mechanical polishing, can help achieve an optimally levelled surface suitable for the subsequent steps of sputtering and ion-beam-assisted deposition (IBAD) necessary for texturing. This review examines Solution Deposition Planarization (SDP) as a cost-effective alternative to traditional electro-mechanical polishing for HTS coated conductors. SDP achieves surface roughness levels below 1 nm through multiple oxide layer coatings, offering reduced production costs. Comparative studies demonstrate planarization efficiencies of up to 20%. Ongoing research aims to enhance SDP’s efficiency for industrial applications in CC production.
Hu Q., Zheng Y., Xu H., Deng J., Liang C., Yang F., Wang Z., Grinenko V., Lv B., Ding H., Yim C.M.
AbstractUnconventional superconductivity is known for its intertwining with other correlated states, making exploration of the intertwined orders important for understanding its pairing mechanism. In particular, spin and nematic orders are widely observed in iron-based superconductors; however, the presence of charge order is uncommon. Using scanning tunnelling microscopy, and through expanding the phase diagram of iron-arsenide superconductor Ba1−xKxFe2As2 to the hole-doping regime beyond KFe2As2 by surface doping, we demonstrate the formation of a charge density wave (CDW) on the arsenide surface of heavily hole-doped Ba1−xKxFe2As2. Its emergence suppresses superconductivity completely, indicating their direct competition. Notably, the CDW emerges when the saddle points approach the Fermi level, where its wavevector matches with those linking the saddle points, suggesting saddle-point nesting as its most probable formation mechanism. Our findings offer insights into superconductivity and intertwined orders, and a platform for studying them in iron-based superconductors close to the half-filled configuration.
Kislov E., Yesina A.P., Selezneva N.V., Sherokalova E.M., Volegov A.S., Kuznetsov D.K., Baranov N.V.
Maeno Y., Ikeda A., Mattoni G.
Coombs T.A., Wang Q., Shah A., Hu J., Hao L., Patel I., Wei H., Wu Y., Coombs T., Wang W.
Shipulin I., Nielsch K., Hühne R.
Abstract
We report the successful epitaxial growth and comprehensive study of structural and superconducting properties of (Nd,Eu,Gd)Ba2Cu3O7−δ
films with a thickness of up to 1.2 μm prepared by on-axis pulsed laser deposition on SrTiO3 (STO) single crystals as well as on ion-beam-assisted deposition (IBAD) and rolling-assisted biaxially textured substrate (RABiTS)-based metal templates. X-ray diffraction demonstrates the epitaxial quality of the grown films on both single crystalline substrates and metal-based templates. In addition, no significant changes in surface morphology were found with increasing thickness for films on all types of substrates. On all substrates, a T
c value of about 89 K was observed, however, significant inhomogeneities indicating small superconducting volume were found for all films on STO. In general, the best transport characteristics over a wide range of magnetic fields and temperatures were observed for thicker films on IBAD-MgO and RABiTS templates, respectively. The J
c values at 77 K for the films on IBAD-MgO templates are comparable to YBCO films, but inferior in the low temperature region and high magnetic fields, whereas the films on RABiTS and especially on STO showed much lower J
c over the entire temperature and magnetic field range. A maximum pinning force of about 7 GN·m−3 at 65 K was found for the 900 nm thick films on IBAD-MgO template. In addition, the pinning mechanism seems to depend on both temperature and type of substrate. In general, no correlation between local microstructure and transport characteristics was revealed for NEG films on both metal templates.
Nothing found, try to update filter.
Kuzmicheva T.E., Kuzmichev S.A., Pervakov K.S., Vlasenko V.A.
We compare the structure of the superconducting order parameter of overdoped BaFe1.88Ni0.12As2 and underdoped BaFe1.92Ni0.08As2 pnictides with similar $${{T}_{c}} \approx 18.0{-} 18.3$$ K. Using incoherent multiple Andreev reflection effect spectroscopy, we directly determined the magnitudes of the two microscopic superconducting order parameters: the small superconducting gap and probably anisotropic large gap, their characteristic ratios and temperature dependences. We discuss similarity and difference in the gap structure, as well as possible influence of antiferromagnetic phase to superconducting properties.
Ummarino G.A., Bianconi A.
The temperature dependence of the two superconducting gaps in pressurised H3S at 155 GPa with a critical temperature of 203 K has been determined using a data analysis of the experimental curve of the upper critical magnetic field as a function of temperature in the framework of the two-band s-wave Eliashberg theory. Two different phonon-mediated intra-band Cooper pairing channels in a regime of moderate strong couplings have the key role of the pair-exchange interaction between the two gaps, giving the two non-diagonal terms of the coupling tensor, which are missing in the single-band s-wave Eliashberg theory. The results provide a prediction of the different temperature dependence of the small and large gaps as a function of temperature, which provides evidence of multigap superconductivity in H3S.
Chen J., Huang R., Zhou X., Zhou D., Li M., Bai C., Liu Z., Cai C.
High-entropy REBa 2 Cu 3 O 7– δ (RE = Y 0.7 + Dy 0.2 + Gd 0.2 + Sm 0.2 + Eu 0.2 ) (HE-REBCO) superconducting films doped with multiple rare earth elements were successfully fabricated with thickness up to 800 nm by a trifluoroacetate-metal organic deposition (TFA-MOD). The enhanced entropy change Δ S of the HE-REBCO system promotes the c -axis growth of REBCO thin film in the competition with a / b -axis growth. The microstructure and element distribution were investigated by the transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The results show that HE-REBCO films have a great amount of stacking defects, lattice distortions and various rare earth oxides. Furthermore, the microstrain of HE-REBCO films increases significantly compared to the undoped YBCO and (Y, Dy)BCO films. Finally, the superconducting critical temperature ( T c onset ) of HE-REBCO films is about 93 K, and the in-field properties are significantly improved, especially at the temperature of about 77 K. The maximum pinning force density ( F p, max ) of the HE-REBCO samples at 77 K is 1.7 times higher than that of the undoped YBCO films. High-entropy REBa 2 Cu 3 O 7– δ (HE-REBCO) promotes the c -axis growth of REBCO thin film in the competition with a / b -axis growth when compared with (Y,Dy)BCO and YBCO films under the same growth conditions, since the distinctly enhanced entropy change (Δ S ) of the HE-REBCO system will lead to a lower Δ μ and Δ G* to generate a better c -axis orientation.
Iguchi Y., Shi R.A., Kihou K., Lee C., Barkman M., Benfenati A.L., Grinenko V., Babaev E., Moler K.A.
Magnetic field penetrates type-II bulk superconductors by forming quantum vortices that enclose a magnetic flux equal to the magnetic flux quantum. The flux quantum is a universal quantity that depends only on fundamental constants. Here we investigate isolated vortices in the hole-overdoped Ba
1−
x
K
x
Fe
2
As
2
(
x
= 0.77) by using scanning superconducting quantum interference device (SQUID) magnetometry. In many locations, we observed vortices that carried only part of a flux quantum, with a magnitude that varied continuously with temperature. We interpret these features as quantum vortices with non-universally quantized (fractional) magnetic flux whose magnitude is determined by the temperature-dependent parameters of a multiband superconductor. The demonstrated mobility and manipulability of the fractional vortices may enable applications in fluxonics-based computing.
Abarca Morales E., Siemann G., Zivanovic A., Murgatroyd P.A., Marković I., Edwards B., Hooley C.A., Sokolov D.A., Kikugawa N., Cacho C., Watson M.D., Kim T.K., Hicks C.W., Mackenzie A.P., King P.D.
We report the evolution of the electronic structure at the surface of the layered perovskite ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ under large in-plane uniaxial compression, leading to anisotropic ${B}_{1g}$ strains of ${ϵ}_{xx}\ensuremath{-}{ϵ}_{yy}=\ensuremath{-}0.9\ifmmode\pm\else\textpm\fi{}0.1%$. From angle-resolved photoemission, we show how this drives a sequence of Lifshitz transitions, reshaping the low-energy electronic structure and the rich spectrum of van Hove singularities that the surface layer of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ hosts. From comparison to tight-binding modeling, we find that the strain is accommodated predominantly by bond-length changes rather than modifications of octahedral tilt and rotation angles. Our study sheds new light on the nature of structural distortions at oxide surfaces, and how targeted control of these can be used to tune density of state singularities to the Fermi level, in turn paving the way to the possible realization of rich collective states at the ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ surface.
Maccari I., Carlström J., Babaev E.
Recent mean-field calculations suggest that the superconducting state of twisted bilayer graphene exhibits either a nematic order or a spontaneous breakdown of the time-reversal symmetry. The two-dimensional character of the material and the large critical temperature relative to the Fermi energy dictate that the material should have significant fluctuations. We study the effects of these fluctuations using Monte Carlo simulations. We show that in a model proposed earlier for twisted bilayer graphene there is a fluctuation-induced phase with quadrupling fermionic order for all considered parameters. This four-electron condensate, instead of superconductivity, shows a spontaneous breaking of time-reversal symmetry. Our results suggest that twisted bilayer graphene is an especially promising platform to study different types of condensates, beyond the pair-condensate paradigm.
Ummarino G.A.
The phenomenology of the iron pnictide superconductor can be described by the three-band s± Eliashberg theory in which the mechanism of superconducting coupling is mediated by antiferromagnetic spin fluctuations and whose characteristic energy Ω0 scales with Tc according to the empirical law Ω0=4.65kBTc. This model presents the universal characteristics that are independent of the critical temperature, such as the link between the two free parameters λ13 and λ23 and the ratio Δi/kBTc.
Sadakov A.V., Muratov A.V., Kuzmichev S.A., Sobolevskiy O.A., Massalimov B.I., Prishchepa A.R., Mikhailov V.M., Pervakov K.S., Vlasenko V.A., Kuzmicheva T.E.
The structure of the superconducting order parameter of weakly underdoped BaFe1.92Ni0.08As2 pnictides with the critical temperature Tc ≈ 18.2 K has been determined. Two microscopic superconducting order parameters—the small superconducting gap ΔS(0) and, supposedly, the edges of the large gap with anisotropy in the ab plane $$\Delta _{{\text{L}}}^{{{\text{out}}}}(0)$$ and $$\Delta _{{\text{L}}}^{{{\text{in}}}}(0)$$—have been determined at T ≪ Tc, together with their temperature dependences, using incoherent multiple Andreev reflection spectroscopy. It has been shown that the determined temperature dependence of the lower critical field Hc1(T) can be described in the two-band approximation both within the so-called alpha model (using experimental ΔS(0), $$\Delta _{{\text{L}}}^{{{\text{out}}}}(0)$$, and $$\Delta _{{\text{L}}}^{{{\text{in}}}}(0)$$ values) and using the temperature dependences ΔS(T) and $$\Delta _{{\text{L}}}^{{{\text{out}}{\text{,in}}}}(T)$$ obtained by multiple Andreev reflection spectroscopy under the assumption of a fairly strong anisotropy of the small superconducting gap, where the experimental ΔS(0) value is taken as the outer edge of its angular distribution.
Røising H.S., Wagner G., Roig M., Rømer A.T., Andersen B.M.
Standard superconductors display a ubiquitous discontinuous jump in the electronic specific heat at the critical superconducting transition temperature. In a growing class of unconventional superconductors, however, a second order parameter component may get stabilized and produce a second heat capacity jump at a lower temperature, typically associated with the spontaneous breaking of time-reversal symmetry. The splitting of the two specific heat discontinuities can be controlled by external perturbations such as chemical substitution, hydrostatic pressure, or uniaxial strain. We develop a theoretical quantitative multiband framework to determine the ratio of the heat capacity jumps, given the band structure and the order parameter momentum structure. We discuss the conditions of the gap profile which determine the amplitude of the second jump. We apply our formalism to the case of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$, and using the gap functions from a microscopic random phase approximation calculation, we show that recently proposed accidentally degenerate order parameters may exhibit a strongly suppressed second heat capacity jump. We discuss the origin of this result and consider also the role of spatial inhomogeneity on the specific heat. Our results provide a possible explanation of why a second heat capacity jump has so far evaded experimental detection in ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$.
Wang X., Wang Z., Kallin C.
The superconducting symmetry of ${\mathrm{Sr}}_{2}\mathrm{Ru}{\mathrm{O}}_{4}$ remains a puzzle. Time-reversal symmetry breaking ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}+i{g}_{xy({x}^{2}\ensuremath{-}{y}^{2})}$ pairing has been proposed for reconciling multiple key experiments. However, its stability remains unclear. In this work, we theoretically study the superconducting instabilities in ${\mathrm{Sr}}_{2}\mathrm{Ru}{\mathrm{O}}_{4}$, including the effects of spin-orbit coupling (SOC), in the presence of both local and longer-range interactions within a random-phase approximation. We show that the inclusion of second-nearest-neighbor repulsions, together with nonlocal SOC in the ${B}_{2g}$ channel or orbital-anisotropy of the nonlocal interactions, can have a significant impact on the stability of both ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}$- and $g$-wave pairing channels. We analyze the properties, such as Knight shift and spontaneous edge current, of the realized ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}+ig, {s}^{\ensuremath{'}}+i{d}_{xy}$, and mixed helical pairings in different parameter spaces, and we find that the ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}+ig$ solution is in better agreement with the experimental data.
Cayado P., Grünewald L., Erbe M., Hänisch J., Gerthsen D., Holzapfel B.
High-entropy oxide (HEO) superconductors have been developed since very recently. Different superconductors can be produced in the form of a high-entropy compound, including REBa2Cu3O7-δ (REBCO). However, until now, mainly bulk samples (mostly in polycrystalline form) have been reported. In this work, the first CSD-grown high-entropy (HE) REBCO nanocomposite films were successfully synthesized. In particular, high-quality Gd0.2Dy0.2Y0.2Ho0.2Er0.2Ba2Cu3O7-δ nanocomposite films with 12 mol% BaHfO3 nanoparticles were grown on SrTiO3 substrates. The X-ray diffraction patterns show a near-perfect c-axis oriented grain growth. Both Tc and 77 K Jsfc, 91.9 K and 3.5 MA cm-2, respectively, are comparable with the values of the single-RE REBCO films. Moreover, at low temperatures, specifically at 30 K, the Jc values are larger than those of the single-RE samples. A transmission electron microscopy (TEM) study, including energy-dispersive X-ray spectroscopy (EDXS) measurements, reveals that the different RE3+ ions are distributed homogeneously in the matrix without forming clusters. This distribution causes point-like pinning centres that explain the superior performances of these samples at low temperatures. Although still seen as a proof-of-concept for the feasibility of preparing such films, these results demonstrate that the HE REBCO films are a promising option for the future fabrication of high-performance coated conductors. In the investigated B-T range, however, their Jc values are still lower than those of other, medium-entropy REBCO films, which shows that an optimization of the composition of the HE REBCO films is needed to maximize their performance.
Garaud J., Babaev E.
Recent experiments [Grinenko et al. Nat. Phys. 17, 1254 (2021)] reported the observation of a condensate of four-fermion composites. This is a resistive state that spontaneously breaks the time-reversal symmetry, leading to unconventional magnetic properties, detected in muon spin rotation experiments and by the appearance of a spontaneous Nernst effect. In this Letter, we derive an effective model for the four-fermion order parameter that describes the observed spontaneous magnetic fields in this state. We show that this model, which is alike to the Faddeev-Skyrme model can host skyrmions: magnetic-flux-carrying topological excitations.
Jerzembeck F., Røising H.S., Steppke A., Rosner H., Sokolov D.A., Kikugawa N., Scaffidi T., Simon S.H., Mackenzie A.P., Hicks C.W.
Applying in-plane uniaxial pressure to strongly correlated low-dimensional systems has been shown to tune the electronic structure dramatically. For example, the unconventional superconductor Sr2RuO4 can be tuned through a single Van Hove point, resulting in strong enhancement of both Tc and Hc2. Out-of-plane (c axis) uniaxial pressure is expected to tune the quasi-two-dimensional structure even more strongly, by pushing it towards two Van Hove points simultaneously. Here, we achieve a record uniaxial stress of 3.2 GPa along the c axis of Sr2RuO4. Hc2 increases, as expected for increasing density of states, but unexpectedly Tc falls. As a first attempt to explain this result, we present three-dimensional calculations in the weak interaction limit. We find that within the weak-coupling framework there is no single order parameter that can account for the contrasting effects of in-plane versus c-axis uniaxial stress, which makes this new result a strong constraint on theories of the superconductivity of Sr2RuO4. In the superconductor Sr2RuO4, in-plane strain is known to enhance both the superconducting transition temperature Tc and upper critical field Hc2, but the effect of out-of-plane strain has not been studied. Here, the authors find that Hc2 is enhanced under out-of-plane strain, but Tc unexpectedly decreases.
Shipulin I.A., Anna Thomas A., Holleis S., Eisterer M., Nielsch K., Hühne R.
We report the local structural and superconducting properties of undoped and Ag-doped YBa2Cu3O6+x (YBCO) films with a thickness of up to 1 µm prepared by pulsed laser deposition on SrTiO3 (STO) single crystals and on ion-beam-assisted deposition (IBAD) and rolling-assisted biaxially textured substrate (RABiTS)-based metal templates. X-ray diffraction demonstrates the high crystalline quality of the films on both single crystalline substrates and metal-based templates, respectively. Although there was only a slight decrease in Tc of up to 1.5 K for the Ag-doped YBCO films on all substrates, we found significant changes in their transport characteristics. The effect of the silver doping mainly depended on the concentration of silver, the type of substrate, and the temperature and magnetic field. In general, the greatest improvement in Jc over a wide range of magnetic fields and temperatures was observed for the 5%Ag-doped YBCO films on STO substrates, showing a significant increase compared to undoped films. Furthermore, a slight Jc improvement was observed for the 2%Ag-doped YBCO films on the RABiTS templates at temperatures below 65 K, whereas Jc decreased for the Ag-doped films on IBAD-MgO-based templates compared to undoped YBCO films. Using detailed electron microscopy studies, small changes in the local microstructure of the Ag-doped YBCO films were revealed; however, no clear correlation was found with the transport properties of the films.
Li Y., Garst M., Schmalian J., Ghosh S., Kikugawa N., Sokolov D.A., Hicks C.W., Jerzembeck F., Ikeda M.S., Hu Z., Ramshaw B.J., Rost A.W., Nicklas M., Mackenzie A.P.
One of the main developments in unconventional superconductivity in the past two decades has been the discovery that most unconventional superconductors form phase diagrams that also contain other strongly correlated states. Many systems of interest are therefore close to more than one instability, and tuning between the resultant ordered phases is the subject of intense research1. In recent years, uniaxial pressure applied using piezoelectric-based devices has been shown to be a particularly versatile new method of tuning2,3, leading to experiments that have advanced our understanding of the fascinating unconventional superconductor Sr2RuO4 (refs. 4–9). Here we map out its phase diagram using high-precision measurements of the elastocaloric effect in what we believe to be the first such study including both the normal and the superconducting states. We observe a strong entropy quench on entering the superconducting state, in excellent agreement with a model calculation for pairing at the Van Hove point, and obtain a quantitative estimate of the entropy change associated with entry to a magnetic state that is observed in proximity to the superconductivity. The phase diagram is intriguing both for its similarity to those seen in other families of unconventional superconductors and for extra features unique, so far, to Sr2RuO4. The phase diagram of the unconventional superconductor Sr2RuO4 in both normal and superconducting states is mapped out using high-precision measurements of the elastocaloric effect, showing similarities to other unconventional superconductors as well as unique features.
Total publications
13
Total citations
62
Citations per publication
4.77
Average publications per year
1.18
Average coauthors
6.31
Publications years
2015-2025 (11 years)
h-index
6
i10-index
2
m-index
0.55
o-index
9
g-index
7
w-index
1
Metrics description
h-index
A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.
i10-index
The number of the author's publications that received at least 10 links each.
m-index
The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.
o-index
The geometric mean of the h-index and the number of citations of the most cited article of the scientist.
g-index
For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g2 citations.
w-index
If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.
Top-100
Fields of science
1
2
3
4
|
|
Metals and Alloys
|
Metals and Alloys, 4, 30.77%
Metals and Alloys
4 publications, 30.77%
|
Materials Chemistry
|
Materials Chemistry, 3, 23.08%
Materials Chemistry
3 publications, 23.08%
|
Ceramics and Composites
|
Ceramics and Composites, 3, 23.08%
Ceramics and Composites
3 publications, 23.08%
|
General Physics and Astronomy
|
General Physics and Astronomy, 3, 23.08%
General Physics and Astronomy
3 publications, 23.08%
|
Condensed Matter Physics
|
Condensed Matter Physics, 3, 23.08%
Condensed Matter Physics
3 publications, 23.08%
|
General Materials Science
|
General Materials Science, 3, 23.08%
General Materials Science
3 publications, 23.08%
|
Electrical and Electronic Engineering
|
Electrical and Electronic Engineering, 3, 23.08%
Electrical and Electronic Engineering
3 publications, 23.08%
|
Surfaces, Coatings and Films
|
Surfaces, Coatings and Films, 1, 7.69%
Surfaces, Coatings and Films
1 publication, 7.69%
|
General Chemistry
|
General Chemistry, 1, 7.69%
General Chemistry
1 publication, 7.69%
|
Electronic, Optical and Magnetic Materials
|
Electronic, Optical and Magnetic Materials, 1, 7.69%
Electronic, Optical and Magnetic Materials
1 publication, 7.69%
|
General Biochemistry, Genetics and Molecular Biology
|
General Biochemistry, Genetics and Molecular Biology, 1, 7.69%
General Biochemistry, Genetics and Molecular Biology
1 publication, 7.69%
|
Multidisciplinary
|
Multidisciplinary, 1, 7.69%
Multidisciplinary
1 publication, 7.69%
|
Polymers and Plastics
|
Polymers and Plastics, 1, 7.69%
Polymers and Plastics
1 publication, 7.69%
|
Mechanical Engineering
|
Mechanical Engineering, 1, 7.69%
Mechanical Engineering
1 publication, 7.69%
|
Biomaterials
|
Biomaterials, 1, 7.69%
Biomaterials
1 publication, 7.69%
|
Mechanics of Materials
|
Mechanics of Materials, 1, 7.69%
Mechanics of Materials
1 publication, 7.69%
|
1
2
3
4
|
Journals
1
2
3
|
|
Superconductor Science and Technology
3 publications, 23.08%
|
|
Materials
2 publications, 15.38%
|
|
Nature Communications
1 publication, 7.69%
|
|
Journal of Physics: Conference Series
1 publication, 7.69%
|
|
Materials Research Express
1 publication, 7.69%
|
|
Physical Review Letters
1 publication, 7.69%
|
|
Physica Scripta
1 publication, 7.69%
|
|
Journal of Physics and Chemistry of Solids
1 publication, 7.69%
|
|
Key Engineering Materials
1 publication, 7.69%
|
|
Physical Review B
1 publication, 7.69%
|
|
1
2
3
|
Citing journals
1
2
3
4
5
6
7
8
9
|
|
Physical Review B
9 citations, 14.52%
|
|
Superconductor Science and Technology
8 citations, 12.9%
|
|
Physical Review Research
4 citations, 6.45%
|
|
IEEE Transactions on Applied Superconductivity
3 citations, 4.84%
|
|
ACS applied materials & interfaces
2 citations, 3.23%
|
|
Solid State Sciences
2 citations, 3.23%
|
|
Scientific Reports
2 citations, 3.23%
|
|
Nature Physics
2 citations, 3.23%
|
|
Journal of Physics and Chemistry of Solids
2 citations, 3.23%
|
|
Journal of the Physical Society of Japan
2 citations, 3.23%
|
|
npj Quantum Materials
1 citation, 1.61%
|
|
Nature Communications
1 citation, 1.61%
|
|
Journal of Alloys and Compounds
1 citation, 1.61%
|
|
Physical Review Letters
1 citation, 1.61%
|
|
Springer Series in Materials Science
1 citation, 1.61%
|
|
Journal of Physics Condensed Matter
1 citation, 1.61%
|
|
JETP Letters
1 citation, 1.61%
|
|
iScience
1 citation, 1.61%
|
|
Physica C: Superconductivity and its Applications
1 citation, 1.61%
|
|
Clean Energy
1 citation, 1.61%
|
|
Journal of Materials Science
1 citation, 1.61%
|
|
Science and Technology of Advanced Materials
1 citation, 1.61%
|
|
JOM
1 citation, 1.61%
|
|
Thin Solid Films
1 citation, 1.61%
|
|
Physica B: Condensed Matter
1 citation, 1.61%
|
|
Physics of Metals and Metallography
1 citation, 1.61%
|
|
Physica Scripta
1 citation, 1.61%
|
|
Journal of Superconductivity and Novel Magnetism
1 citation, 1.61%
|
|
Journal of the American Ceramic Society
1 citation, 1.61%
|
|
Coatings
1 citation, 1.61%
|
|
Materials
1 citation, 1.61%
|
|
Journal of Physics Materials
1 citation, 1.61%
|
|
Письма в Журнал экспериментальной и теоретической физики
1 citation, 1.61%
|
|
Физика металлов и металловедение
1 citation, 1.61%
|
|
Introduction to the Light-Emitting Diode
1 citation, 1.61%
|
|
Nature Reviews Electrical Engineering
1 citation, 1.61%
|
|
Show all (6 more) | |
1
2
3
4
5
6
7
8
9
|
Publishers
1
2
3
4
5
6
|
|
IOP Publishing
6 publications, 46.15%
|
|
MDPI
2 publications, 15.38%
|
|
American Physical Society (APS)
2 publications, 15.38%
|
|
Springer Nature
1 publication, 7.69%
|
|
Elsevier
1 publication, 7.69%
|
|
Trans Tech Publications
1 publication, 7.69%
|
|
1
2
3
4
5
6
|
Organizations from articles
1
2
3
4
5
6
7
8
|
|
Leibniz Institute for Solid State and Materials Research
8 publications, 61.54%
|
|
Technische Universität Dresden
6 publications, 46.15%
|
|
Vienna University of Technology
4 publications, 30.77%
|
|
Organization not defined
|
Organization not defined, 3, 23.08%
Organization not defined
3 publications, 23.08%
|
Shanghai Jiao Tong University
3 publications, 23.08%
|
|
Paul Scherrer Institute
3 publications, 23.08%
|
|
Southern Federal University
2 publications, 15.38%
|
|
National Institute for Materials Science
2 publications, 15.38%
|
|
Kyoto University
2 publications, 15.38%
|
|
Max Planck Institute for Chemical Physics of Solids
2 publications, 15.38%
|
|
RIKEN-Institute of Physical and Chemical Research
2 publications, 15.38%
|
|
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
1 publication, 7.69%
|
|
University of Genoa
1 publication, 7.69%
|
|
KTH Royal Institute of Technology
1 publication, 7.69%
|
|
University of Birmingham
1 publication, 7.69%
|
|
Johns Hopkins University
1 publication, 7.69%
|
|
National Institute of Advanced Industrial Science and Technology
1 publication, 7.69%
|
|
1
2
3
4
5
6
7
8
|
Countries from articles
1
2
3
4
5
6
7
8
|
|
Germany
|
Germany, 8, 61.54%
Germany
8 publications, 61.54%
|
Austria
|
Austria, 4, 30.77%
Austria
4 publications, 30.77%
|
Country not defined
|
Country not defined, 3, 23.08%
Country not defined
3 publications, 23.08%
|
Russia
|
Russia, 3, 23.08%
Russia
3 publications, 23.08%
|
China
|
China, 3, 23.08%
China
3 publications, 23.08%
|
Switzerland
|
Switzerland, 3, 23.08%
Switzerland
3 publications, 23.08%
|
Japan
|
Japan, 3, 23.08%
Japan
3 publications, 23.08%
|
USA
|
USA, 1, 7.69%
USA
1 publication, 7.69%
|
United Kingdom
|
United Kingdom, 1, 7.69%
United Kingdom
1 publication, 7.69%
|
Italy
|
Italy, 1, 7.69%
Italy
1 publication, 7.69%
|
Sweden
|
Sweden, 1, 7.69%
Sweden
1 publication, 7.69%
|
1
2
3
4
5
6
7
8
|
Citing organizations
2
4
6
8
10
12
14
16
|
|
Organization not defined
|
Organization not defined, 16, 25.81%
Organization not defined
16 citations, 25.81%
|
Leibniz Institute for Solid State and Materials Research
7 citations, 11.29%
|
|
Max Planck Institute for Chemical Physics of Solids
6 citations, 9.68%
|
|
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
5 citations, 8.06%
|
|
Karlsruhe Institute of Technology
5 citations, 8.06%
|
|
Technische Universität Dresden
4 citations, 6.45%
|
|
University of Birmingham
4 citations, 6.45%
|
|
Kyoto University
4 citations, 6.45%
|
|
University of St Andrews
4 citations, 6.45%
|
|
Shanghai Jiao Tong University
3 citations, 4.84%
|
|
National Institute for Materials Science
3 citations, 4.84%
|
|
Cornell University
3 citations, 4.84%
|
|
RIKEN-Institute of Physical and Chemical Research
3 citations, 4.84%
|
|
M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
2 citations, 3.23%
|
|
Ural Federal University
2 citations, 3.23%
|
|
University of Chinese Academy of Sciences
2 citations, 3.23%
|
|
University of Genoa
2 citations, 3.23%
|
|
KTH Royal Institute of Technology
2 citations, 3.23%
|
|
Paul Scherrer Institute
2 citations, 3.23%
|
|
University of Geneva
2 citations, 3.23%
|
|
Polytechnic University of Turin
2 citations, 3.23%
|
|
Southwest Jiaotong University
2 citations, 3.23%
|
|
National Agency for New Technologies, Energy and Sustainable Economic Development
2 citations, 3.23%
|
|
SLAC National Accelerator Laboratory
2 citations, 3.23%
|
|
Vienna University of Technology
2 citations, 3.23%
|
|
RWTH Aachen University
2 citations, 3.23%
|
|
Moscow Institute of Physics and Technology
1 citation, 1.61%
|
|
National Research Nuclear University MEPhI
1 citation, 1.61%
|
|
Osipyan Institute of Solid State Physics of the Russian Academy of Sciences
1 citation, 1.61%
|
|
Herzen State Pedagogical University of Russia
1 citation, 1.61%
|
|
Russian Quantum Center
1 citation, 1.61%
|
|
Technology Innovation Institute
1 citation, 1.61%
|
|
Indian Institute of Technology Guwahati
1 citation, 1.61%
|
|
Homi Bhabha National Institute
1 citation, 1.61%
|
|
Indira Gandhi Centre for Atomic Research
1 citation, 1.61%
|
|
Peking University
1 citation, 1.61%
|
|
Tel Aviv University
1 citation, 1.61%
|
|
Bar-Ilan University
1 citation, 1.61%
|
|
Radboud University Nijmegen
1 citation, 1.61%
|
|
École Polytechnique Fédérale de Lausanne
1 citation, 1.61%
|
|
ETH Zurich
1 citation, 1.61%
|
|
Wuhan University
1 citation, 1.61%
|
|
Delft University of Technology
1 citation, 1.61%
|
|
Swiss Federal Laboratories for Materials Science and Technology
1 citation, 1.61%
|
|
University of Basel
1 citation, 1.61%
|
|
Raja Ramanna Centre for Advanced Technology
1 citation, 1.61%
|
|
Shanghai University
1 citation, 1.61%
|
|
Helmholtz-Zentrum Dresden-Rossendorf
1 citation, 1.61%
|
|
Technical University of Denmark
1 citation, 1.61%
|
|
Institute of Physics, Chinese Academy of Sciences
1 citation, 1.61%
|
|
Florida State University
1 citation, 1.61%
|
|
Lawrence Berkeley National Laboratory
1 citation, 1.61%
|
|
National Taiwan University
1 citation, 1.61%
|
|
Qingdao University of Technology
1 citation, 1.61%
|
|
National Enterprise for NanoScience and NanoTechnology
1 citation, 1.61%
|
|
Tokyo Institute of Technology
1 citation, 1.61%
|
|
Georgia Institute of technology
1 citation, 1.61%
|
|
Brookhaven National Laboratory
1 citation, 1.61%
|
|
Royal Melbourne Institute of Technology
1 citation, 1.61%
|
|
Stanford University
1 citation, 1.61%
|
|
University of Johannesburg
1 citation, 1.61%
|
|
University of South Africa
1 citation, 1.61%
|
|
Pohang University of Science and Technology
1 citation, 1.61%
|
|
Harvard University
1 citation, 1.61%
|
|
University of California, Davis
1 citation, 1.61%
|
|
University of California, Irvine
1 citation, 1.61%
|
|
University of California, Santa Cruz
1 citation, 1.61%
|
|
Nagoya University
1 citation, 1.61%
|
|
University of Ioannina
1 citation, 1.61%
|
|
Max Planck Institute for Multidisciplinary Sciences
1 citation, 1.61%
|
|
Max Planck Institute for the Structure and Dynamics of Matter
1 citation, 1.61%
|
|
Helmholtz Centre for Materials and Energy
1 citation, 1.61%
|
|
Leibniz Institute for Crystal Growth
1 citation, 1.61%
|
|
University of Illinois Urbana-Champaign
1 citation, 1.61%
|
|
Collège de France
1 citation, 1.61%
|
|
Simon Fraser University
1 citation, 1.61%
|
|
Goethe University Frankfurt
1 citation, 1.61%
|
|
Physikalisch-Technische Bundesanstalt
1 citation, 1.61%
|
|
University of Augsburg
1 citation, 1.61%
|
|
Center for Free-Electron Laser Science
1 citation, 1.61%
|
|
Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy
1 citation, 1.61%
|
|
University of Stuttgart
1 citation, 1.61%
|
|
Kiel University
1 citation, 1.61%
|
|
Johannes Gutenberg University Mainz
1 citation, 1.61%
|
|
University of Tokyo
1 citation, 1.61%
|
|
Hiroshima University
1 citation, 1.61%
|
|
Akita University
1 citation, 1.61%
|
|
University of Toronto
1 citation, 1.61%
|
|
University of Oviedo
1 citation, 1.61%
|
|
Nanomaterials and Nanotechnology Research Center
1 citation, 1.61%
|
|
Paris Sciences et Lettres
1 citation, 1.61%
|
|
Institute of Electrical Engineering, Chinese Academy of Sciences
1 citation, 1.61%
|
|
Show all (62 more) | |
2
4
6
8
10
12
14
16
|
Citing countries
2
4
6
8
10
12
14
16
18
|
|
Country not defined
|
Country not defined, 17, 27.42%
Country not defined
17 citations, 27.42%
|
Germany
|
Germany, 16, 25.81%
Germany
16 citations, 25.81%
|
USA
|
USA, 11, 17.74%
USA
11 citations, 17.74%
|
China
|
China, 11, 17.74%
China
11 citations, 17.74%
|
Japan
|
Japan, 10, 16.13%
Japan
10 citations, 16.13%
|
Russia
|
Russia, 8, 12.9%
Russia
8 citations, 12.9%
|
United Kingdom
|
United Kingdom, 7, 11.29%
United Kingdom
7 citations, 11.29%
|
Italy
|
Italy, 5, 8.06%
Italy
5 citations, 8.06%
|
Switzerland
|
Switzerland, 5, 8.06%
Switzerland
5 citations, 8.06%
|
Sweden
|
Sweden, 3, 4.84%
Sweden
3 citations, 4.84%
|
Austria
|
Austria, 2, 3.23%
Austria
2 citations, 3.23%
|
India
|
India, 2, 3.23%
India
2 citations, 3.23%
|
Canada
|
Canada, 2, 3.23%
Canada
2 citations, 3.23%
|
Netherlands
|
Netherlands, 2, 3.23%
Netherlands
2 citations, 3.23%
|
South Africa
|
South Africa, 2, 3.23%
South Africa
2 citations, 3.23%
|
France
|
France, 1, 1.61%
France
1 citation, 1.61%
|
Australia
|
Australia, 1, 1.61%
Australia
1 citation, 1.61%
|
Greece
|
Greece, 1, 1.61%
Greece
1 citation, 1.61%
|
Denmark
|
Denmark, 1, 1.61%
Denmark
1 citation, 1.61%
|
Israel
|
Israel, 1, 1.61%
Israel
1 citation, 1.61%
|
Spain
|
Spain, 1, 1.61%
Spain
1 citation, 1.61%
|
Nigeria
|
Nigeria, 1, 1.61%
Nigeria
1 citation, 1.61%
|
UAE
|
UAE, 1, 1.61%
UAE
1 citation, 1.61%
|
Republic of Korea
|
Republic of Korea, 1, 1.61%
Republic of Korea
1 citation, 1.61%
|
Czech Republic
|
Czech Republic, 1, 1.61%
Czech Republic
1 citation, 1.61%
|
2
4
6
8
10
12
14
16
18
|
- We do not take into account publications without a DOI.
- Statistics recalculated daily.
This section displays the profiles of scientists registered on the platform. To display the full list, invite your colleagues to register.
Company/Organization
Position
Researcher
Employment type
Full time
Years
2019 —
2023
Company/Organization
Position
Researcher
Employment type
Full time
Years
2023 —
2023
Company/Organization
Position
Guest researcher
Employment type
Part time
Years
2023 —
2023
Company/Organization
Position
Junior Researcher
Employment type
Part time
Years
2017 —
2020