Magnetic field screening in hydrogen-rich high-temperature superconductors
Abstract
In the last few years, the superconducting transition temperature, Tc, of hydrogen-rich compounds has increased dramatically, and is now approaching room temperature. However, the pressures at which these materials are stable exceed one million atmospheres and limit the number of available experimental studies. Superconductivity in hydrides has been primarily explored by electrical transport measurements, whereas magnetic properties, one of the most important characteristic of a superconductor, have not been satisfactory defined. Here, we develop SQUID magnetometry under extreme high-pressure conditions and report characteristic superconducting parameters for Im-3m-H3S and Fm-3m-LaH10—the representative members of two families of high-temperature superconducting hydrides. We determine a lower critical field Hc1 of ~0.82 T and ~0.55 T, and a London penetration depth λL of ~20 nm and ~30 nm in H3S and LaH10, respectively. The small values of λL indicate a high superfluid density in both hydrides. These compounds have the values of the Ginzburg-Landau parameter κ ~12–20 and belong to the group of “moderate” type II superconductors, rather than being hard superconductors as would be intuitively expected from their high Tcs.
- Authors:
-
[1];
[2];
[3];
[5];
[5];
[1]
- Max Planck Institute for Chemistry, Mainz (Germany)
- Ames Lab., and Iowa State Univ., Ames, IA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Chicago, IL (United States)
- Deutsches-Elektronen Synchrotron DESY, Hamburg (Germany)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1873410
- Alternate Identifier(s):
- OSTI ID: 1897452
- Report Number(s):
- IS-J-10,825; LA-UR-22-30942
Journal ID: ISSN 2041-1723; TRN: US2307028
- Grant/Contract Number:
- AC02-07CH11358; EAR-1634415; FG02-94ER14466; AC02-06CH11357; DMR-1644779; 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; high magnetic field science
Citation Formats
Minkov, V. S., Bud’ko, S. L., Balakirev, F. F., Prakapenka, V. B., Chariton, S., Husband, R. J., Liermann, H. P., and Eremets, M. I. Magnetic field screening in hydrogen-rich high-temperature superconductors. United States: N. p., 2022.
Web. doi:10.1038/s41467-022-30782-x.
Minkov, V. S., Bud’ko, S. L., Balakirev, F. F., Prakapenka, V. B., Chariton, S., Husband, R. J., Liermann, H. P., & Eremets, M. I. Magnetic field screening in hydrogen-rich high-temperature superconductors. United States. https://doi.org/10.1038/s41467-022-30782-x
Minkov, V. S., Bud’ko, S. L., Balakirev, F. F., Prakapenka, V. B., Chariton, S., Husband, R. J., Liermann, H. P., and Eremets, M. I. Thu .
"Magnetic field screening in hydrogen-rich high-temperature superconductors". United States. https://doi.org/10.1038/s41467-022-30782-x. https://www.osti.gov/servlets/purl/1873410.
@article{osti_1873410,
title = {Magnetic field screening in hydrogen-rich high-temperature superconductors},
author = {Minkov, V. S. and Bud’ko, S. L. and Balakirev, F. F. and Prakapenka, V. B. and Chariton, S. and Husband, R. J. and Liermann, H. P. and Eremets, M. I.},
abstractNote = {In the last few years, the superconducting transition temperature, Tc, of hydrogen-rich compounds has increased dramatically, and is now approaching room temperature. However, the pressures at which these materials are stable exceed one million atmospheres and limit the number of available experimental studies. Superconductivity in hydrides has been primarily explored by electrical transport measurements, whereas magnetic properties, one of the most important characteristic of a superconductor, have not been satisfactory defined. Here, we develop SQUID magnetometry under extreme high-pressure conditions and report characteristic superconducting parameters for Im-3m-H3S and Fm-3m-LaH10—the representative members of two families of high-temperature superconducting hydrides. We determine a lower critical field Hc1 of ~0.82 T and ~0.55 T, and a London penetration depth λL of ~20 nm and ~30 nm in H3S and LaH10, respectively. The small values of λL indicate a high superfluid density in both hydrides. These compounds have the values of the Ginzburg-Landau parameter κ ~12–20 and belong to the group of “moderate” type II superconductors, rather than being hard superconductors as would be intuitively expected from their high Tcs.},
doi = {10.1038/s41467-022-30782-x},
journal = {Nature Communications},
number = 1,
volume = 13,
place = {United States},
year = {Thu Jun 09 00:00:00 EDT 2022},
month = {Thu Jun 09 00:00:00 EDT 2022}
}
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