Superconducting phase diagram of H3S under high magnetic fields
Abstract
The discovery of superconductivity at 260 K in hydrogen-rich compounds like LaH10 re-invigorated the quest for room temperature superconductivity. Here, we report the temperature dependence of the upper critical fields μ0Hc2(T) of superconducting H3S under a record-high combination of applied pressures up to 160 GPa and fields up to 65 T. We find that Hc2(T) displays a linear dependence on temperature over an extended range as found in multigap or in strongly-coupled superconductors, thus deviating from conventional Werthamer, Helfand, and Hohenberg (WHH) formalism. The best fit of Hc2(T) to the WHH formalism yields negligible values for the Maki parameter α and the spin–orbit scattering constant λSO. However, Hc2(T) is well-described by a model based on strong coupling superconductivity with a coupling constant λ ~ 2. We conclude that H3S behaves as a strong-coupled orbital-limited superconductor over the entire range of temperatures and fields used for our measurements.
- Authors:
-
- Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Max Planck Inst. for Chemistry, Mainz (Germany)
- Osaka Univ., Toyonaka (Japan). KYOKUGEN. Graduate School of Engineering Science
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Florida State Univ., Tallahassee, FL (United States); Osaka Univ., Toyonaka (Japan)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Japan Society for the Promotion of Science (JSPS)
- OSTI Identifier:
- 1542848
- Alternate Identifier(s):
- OSTI ID: 1594446
- Report Number(s):
- LA-UR-19-20960
Journal ID: ISSN 2041-1723
- Grant/Contract Number:
- 89233218CNA000001; SC0002613; DMR-1644779; 26000006
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 10; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Mozaffari, Shirin, Sun, Dan, Minkov, Vasily S., Drozdov, Alexander P., Knyazev, Dmitry, Betts, Jonathan B., Einaga, Mari, Shimizu, Katsuya, Eremets, Mikhail I., Balicas, Luis, and Balakirev, Fedor F. Superconducting phase diagram of H3S under high magnetic fields. United States: N. p., 2019.
Web. doi:10.1038/s41467-019-10552-y.
Mozaffari, Shirin, Sun, Dan, Minkov, Vasily S., Drozdov, Alexander P., Knyazev, Dmitry, Betts, Jonathan B., Einaga, Mari, Shimizu, Katsuya, Eremets, Mikhail I., Balicas, Luis, & Balakirev, Fedor F. Superconducting phase diagram of H3S under high magnetic fields. United States. https://doi.org/10.1038/s41467-019-10552-y
Mozaffari, Shirin, Sun, Dan, Minkov, Vasily S., Drozdov, Alexander P., Knyazev, Dmitry, Betts, Jonathan B., Einaga, Mari, Shimizu, Katsuya, Eremets, Mikhail I., Balicas, Luis, and Balakirev, Fedor F. Fri .
"Superconducting phase diagram of H3S under high magnetic fields". United States. https://doi.org/10.1038/s41467-019-10552-y. https://www.osti.gov/servlets/purl/1542848.
@article{osti_1542848,
title = {Superconducting phase diagram of H3S under high magnetic fields},
author = {Mozaffari, Shirin and Sun, Dan and Minkov, Vasily S. and Drozdov, Alexander P. and Knyazev, Dmitry and Betts, Jonathan B. and Einaga, Mari and Shimizu, Katsuya and Eremets, Mikhail I. and Balicas, Luis and Balakirev, Fedor F.},
abstractNote = {The discovery of superconductivity at 260 K in hydrogen-rich compounds like LaH10 re-invigorated the quest for room temperature superconductivity. Here, we report the temperature dependence of the upper critical fields μ0Hc2(T) of superconducting H3S under a record-high combination of applied pressures up to 160 GPa and fields up to 65 T. We find that Hc2(T) displays a linear dependence on temperature over an extended range as found in multigap or in strongly-coupled superconductors, thus deviating from conventional Werthamer, Helfand, and Hohenberg (WHH) formalism. The best fit of Hc2(T) to the WHH formalism yields negligible values for the Maki parameter α and the spin–orbit scattering constant λSO. However, Hc2(T) is well-described by a model based on strong coupling superconductivity with a coupling constant λ ~ 2. We conclude that H3S behaves as a strong-coupled orbital-limited superconductor over the entire range of temperatures and fields used for our measurements.},
doi = {10.1038/s41467-019-10552-y},
journal = {Nature Communications},
number = ,
volume = 10,
place = {United States},
year = {Fri Jun 07 00:00:00 EDT 2019},
month = {Fri Jun 07 00:00:00 EDT 2019}
}
Web of Science
Figures / Tables:
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Figures / Tables found in this record: