Nature, volume 569, issue 7757, pages 528-531

Superconductivity at 250 K in lanthanum hydride under high pressures

Drozdov A P 1
Kong P. P. 1
Minkov V. S. 1
Besedin S. P. 1
Kuzovnikov M. A. 1, 2
Mozaffari S. 3
BALICAS L. 3
BALAKIREV F. F. 4
Graf D. E. 3
Prakapenka V. B. 5
Greenberg E. 5
Knyazev D. A. 1
Tkacz M. 6
Eremets M. I. 1
1
 
Max-Planck Institut für Chemie, Mainz, Germany
4
 
NHMFL, Los Alamos National Laboratory, Los Alamos, USA
5
 
Center for Advanced Radiation Sources, University of Chicago, Chicago, USA
6
 
Institute of Physical Chemistry PAS, Warsaw, Poland
Publication typeJournal Article
Publication date2019-05-22
Journal: Nature
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor64.8
ISSN00280836, 14764687
Multidisciplinary
Abstract
With the discovery1 of superconductivity at 203 kelvin in H3S, attention returned to conventional superconductors with properties that can be described by the Bardeen–Cooper–Schrieffer and the Migdal–Eliashberg theories. Although these theories predict the possibility of room-temperature superconductivity in metals that have certain favourable properties—such as lattice vibrations at high frequencies—they are not sufficient to guide the design or predict the properties of new superconducting materials. First-principles calculations based on density functional theory have enabled such predictions, and have suggested a new family of superconducting hydrides that possess a clathrate-like structure in which the host atom (calcium, yttrium, lanthanum) is at the centre of a cage formed by hydrogen atoms2–4. For LaH10 and YH10, the onset of superconductivity is predicted to occur at critical temperatures between 240 and 320 kelvin at megabar pressures3–6. Here we report superconductivity with a critical temperature of around 250 kelvin within the $$Fm\bar{{\bf{3}}}m$$Fm3¯m structure of LaH10 at a pressure of about 170 gigapascals. This is, to our knowledge, the highest critical temperature that has been confirmed so far in a superconducting material. Superconductivity was evidenced by the observation of zero resistance, an isotope effect, and a decrease in critical temperature under an external magnetic field, which suggested an upper critical magnetic field of about 136 tesla at zero temperature. The increase of around 50 kelvin compared with the previous highest critical temperature1 is an encouraging step towards the goal of achieving room-temperature superconductivity in the near future.A lanthanum hydride compound at a pressure of around 170 gigapascals is found to exhibit superconductivity with a critical temperature of 250 kelvin.

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Drozdov A. P. et al. Superconductivity at 250 K in lanthanum hydride under high pressures // Nature. 2019. Vol. 569. No. 7757. pp. 528-531.
GOST all authors (up to 50) Copy
Drozdov A. P., Kong P. P., Minkov V. S., Besedin S. P., Kuzovnikov M. A., Mozaffari S., BALICAS L., BALAKIREV F. F., Graf D. E., Prakapenka V. B., Greenberg E., Knyazev D. A., Tkacz M., Eremets M. I. Superconductivity at 250 K in lanthanum hydride under high pressures // Nature. 2019. Vol. 569. No. 7757. pp. 528-531.
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RIS Copy
TY - JOUR
DO - 10.1038/s41586-019-1201-8
UR - https://doi.org/10.1038%2Fs41586-019-1201-8
TI - Superconductivity at 250 K in lanthanum hydride under high pressures
T2 - Nature
AU - Drozdov, A P
AU - Kong, P. P.
AU - Minkov, V. S.
AU - Besedin, S. P.
AU - Kuzovnikov, M. A.
AU - Mozaffari, S.
AU - BALICAS, L.
AU - BALAKIREV, F. F.
AU - Graf, D. E.
AU - Prakapenka, V. B.
AU - Greenberg, E.
AU - Knyazev, D. A.
AU - Tkacz, M.
AU - Eremets, M. I.
PY - 2019
DA - 2019/05/22 00:00:00
PB - Springer Nature
SP - 528-531
IS - 7757
VL - 569
SN - 0028-0836
SN - 1476-4687
ER -
BibTex |
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BibTex Copy
@article{2019_Drozdov,
author = {A P Drozdov and P. P. Kong and V. S. Minkov and S. P. Besedin and M. A. Kuzovnikov and S. Mozaffari and L. BALICAS and F. F. BALAKIREV and D. E. Graf and V. B. Prakapenka and E. Greenberg and D. A. Knyazev and M. Tkacz and M. I. Eremets},
title = {Superconductivity at 250 K in lanthanum hydride under high pressures},
journal = {Nature},
year = {2019},
volume = {569},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1038%2Fs41586-019-1201-8},
number = {7757},
pages = {528--531},
doi = {10.1038/s41586-019-1201-8}
}
MLA
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MLA Copy
Drozdov, A. P., et al. “Superconductivity at 250 K in lanthanum hydride under high pressures.” Nature, vol. 569, no. 7757, May. 2019, pp. 528-531. https://doi.org/10.1038%2Fs41586-019-1201-8.
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