Nature Physics, volume 11, issue 4, pages 332-337
Direct observation of Josephson vortex cores
Roditchev Dimitri
1, 2
,
Brun Christophe
1
,
Serrier Garcia Lise
1
,
Cuevas Juan Carlos
3
,
Bessa Vagner Henrique Loiola
4
,
Milošević Milorad Vlado
4, 5
,
Debontridder François
1
,
Stolyarov Vasily
1
,
3
Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
|
4
Departamento de Física, Universidade Federal do Ceará, 60451-970 Fortaleza, Ceará, Brazil
|
Publication type: Journal Article
Publication date: 2015-02-23
General Physics and Astronomy
Abstract
Superconducting correlations may propagate between two superconductors separated by a tiny insulating or metallic barrier, allowing a dissipationless electric current to flow(1,2). In the presence of a magnetic field, the maximum supercurrent oscillates(3) and each oscillation corresponding to the entry of one Josephson vortex into the barrier(4). Josephson vortices are conceptual blocks of advanced quantum devices such as coherent terahertz generators(5) or qubits for quantum computing(6), in which on-demand generation and control is crucial. Here, we map superconducting correlations inside proximity Josephson junctions(7) using scanning tunnelling microscopy. Unexpectedly, we find that such Josephson vortices have real cores, in which the proximity gap is locally suppressed and the normal state recovered. By following the Josephson vortex formation and evolution we demonstrate that they originate from quantum interference of Andreev quasiparticles(8), and that the phase portraits of the two superconducting quantum condensates at edges of the junction decide their generation, shape, spatial extent and arrangement. Our observation opens a pathway towards the generation and control of Josephson vortices by applying supercurrents through the superconducting leads of the junctions, that is, by purely electrical means without any need for a magnetic field, which is a crucial step towards high-density on-chip integration of superconducting quantum devices.
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37 publications, 31.09%
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8 publications, 6.72%
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2 publications, 1.68%
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2 publications, 1.68%
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Communications Physics
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Communications Physics
2 publications, 1.68%
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1 publication, 0.84%
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Applied Physics Letters
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Applied Physics Letters
1 publication, 0.84%
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Structural Dynamics
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Structural Dynamics
1 publication, 0.84%
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AIP Advances
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AIP Advances
1 publication, 0.84%
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Condensed Matter
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Condensed Matter
1 publication, 0.84%
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Journal of Superconductivity and Novel Magnetism
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1 publication, 0.84%
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Nature Photonics
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Nature Photonics
1 publication, 0.84%
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Journal of Physics Condensed Matter
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Journal of Physics Condensed Matter
1 publication, 0.84%
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New Journal of Physics
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1 publication, 0.84%
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Solid State Communications
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1 publication, 0.84%
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Journal of Computational Physics
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Journal of Computational Physics
1 publication, 0.84%
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Surface Science
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Surface Science
1 publication, 0.84%
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Physics Letters, Section A: General, Atomic and Solid State Physics
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Physics Letters, Section A: General, Atomic and Solid State Physics
1 publication, 0.84%
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Comptes Rendus Physique
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Comptes Rendus Physique
1 publication, 0.84%
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Optik
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Optik
1 publication, 0.84%
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Citations by publishers
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American Physical Society (APS)
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American Physical Society (APS)
49 publications, 41.18%
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Springer Nature
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Springer Nature
21 publications, 17.65%
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Elsevier
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Elsevier
14 publications, 11.76%
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American Chemical Society (ACS)
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American Chemical Society (ACS)
10 publications, 8.4%
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IOP Publishing
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IOP Publishing
7 publications, 5.88%
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American Institute of Physics (AIP)
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American Institute of Physics (AIP)
6 publications, 5.04%
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Wiley
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Wiley
3 publications, 2.52%
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 1.68%
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Optical Society of America
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Optical Society of America
2 publications, 1.68%
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Royal Society of Chemistry (RSC)
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Royal Society of Chemistry (RSC)
1 publication, 0.84%
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Stichting SciPost
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Stichting SciPost, 1, 0.84%
Stichting SciPost
1 publication, 0.84%
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Taylor & Francis
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Taylor & Francis
1 publication, 0.84%
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Chinese Physical Society
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Chinese Physical Society
1 publication, 0.84%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Roditchev D. et al. Direct observation of Josephson vortex cores // Nature Physics. 2015. Vol. 11. No. 4. pp. 332-337.
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Roditchev D., Brun C., Serrier Garcia L., Cuevas J. C., Bessa V. H. L., Milošević M. V., Debontridder F., Stolyarov V., Cren T. Direct observation of Josephson vortex cores // Nature Physics. 2015. Vol. 11. No. 4. pp. 332-337.
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TY - JOUR
DO - 10.1038/nphys3240
UR - https://doi.org/10.1038%2Fnphys3240
TI - Direct observation of Josephson vortex cores
T2 - Nature Physics
AU - Brun, Christophe
AU - Serrier Garcia, Lise
AU - Cuevas, Juan Carlos
AU - Bessa, Vagner Henrique Loiola
AU - Milošević, Milorad Vlado
AU - Debontridder, François
AU - Stolyarov, Vasily
AU - Cren, Tristan
AU - Roditchev, Dimitri
PY - 2015
DA - 2015/02/23 00:00:00
PB - Springer Nature
SP - 332-337
IS - 4
VL - 11
SN - 1745-2473
ER -
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@article{2015_Roditchev,
author = {Christophe Brun and Lise Serrier Garcia and Juan Carlos Cuevas and Vagner Henrique Loiola Bessa and Milorad Vlado Milošević and François Debontridder and Vasily Stolyarov and Tristan Cren and Dimitri Roditchev},
title = {Direct observation of Josephson vortex cores},
journal = {Nature Physics},
year = {2015},
volume = {11},
publisher = {Springer Nature},
month = {feb},
url = {https://doi.org/10.1038%2Fnphys3240},
number = {4},
pages = {332--337},
doi = {10.1038/nphys3240}
}
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MLA
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Roditchev, Dimitri, et al. “Direct observation of Josephson vortex cores.” Nature Physics, vol. 11, no. 4, Feb. 2015, pp. 332-337. https://doi.org/10.1038%2Fnphys3240.