Superconductivity in pressurized and related noncentrosymmetric compounds
Abstract
Here, we report the discovery of superconductivity in pressurized CeRhGe3, a nonsuperconducting member of the isostructural family of noncentrosymmetric heavy-fermion compounds CeTX3(T = Co, Rh, Ir and X=Si, Ge). Superconductivity appears in CeRhGe3 at a pressure of 19.6 GPa and the transition temperature TC reaches a maximum value of 1.3 K at 21.5 GPa. This finding provides an opportunity to establish systematic correlations between superconductivity and material properties within this family. Though ambient-pressure unit-cell volumes and critical pressures for superconductivity vary substantially across the series, all family members reach a maximum TmaxC at a common (±1.7%) critical cell volume Vcrit, and TmaxC at Vcrit increases with increasing spin-orbit coupling strength of the d electrons. These correlations show that substantial Kondo and spin-orbit couplings favor superconductivity in this family, the latter reflecting the role of broken centrosymmetry.
- Authors:
-
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Russian Academy of Sciences, Moscow (Russia)
- Chinese Academy of Sciences, Shanghai (China)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1467208
- Alternate Identifier(s):
- OSTI ID: 1421885
- Report Number(s):
- LA-UR-17-27472
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 6; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; High Magnetic Field Science; Superconductivity; pressure; non-centrosymmetric
Citation Formats
Wang, Honghong, Guo, Jing, Bauer, Eric Dietzgen, Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Li, Xiaodong, Li, Yanchun, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, Joe David, and Sun, Liling. Superconductivity in pressurized CeRhGe3 and related noncentrosymmetric compounds. United States: N. p., 2018.
Web. doi:10.1103/PhysRevB.97.064514.
Wang, Honghong, Guo, Jing, Bauer, Eric Dietzgen, Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Li, Xiaodong, Li, Yanchun, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, Joe David, & Sun, Liling. Superconductivity in pressurized CeRhGe3 and related noncentrosymmetric compounds. United States. doi:10.1103/PhysRevB.97.064514.
Wang, Honghong, Guo, Jing, Bauer, Eric Dietzgen, Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Li, Xiaodong, Li, Yanchun, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, Joe David, and Sun, Liling. Tue .
"Superconductivity in pressurized CeRhGe3 and related noncentrosymmetric compounds". United States. doi:10.1103/PhysRevB.97.064514. https://www.osti.gov/servlets/purl/1467208.
@article{osti_1467208,
title = {Superconductivity in pressurized CeRhGe3 and related noncentrosymmetric compounds},
author = {Wang, Honghong and Guo, Jing and Bauer, Eric Dietzgen and Sidorov, Vladimir A. and Zhao, Hengcan and Zhang, Jiahao and Zhou, Yazhou and Wang, Zhe and Cai, Shu and Yang, Ke and Li, Aiguo and Li, Xiaodong and Li, Yanchun and Sun, Peijie and Yang, Yi-feng and Wu, Qi and Xiang, Tao and Thompson, Joe David and Sun, Liling},
abstractNote = {Here, we report the discovery of superconductivity in pressurized CeRhGe3, a nonsuperconducting member of the isostructural family of noncentrosymmetric heavy-fermion compounds CeTX3(T = Co, Rh, Ir and X=Si, Ge). Superconductivity appears in CeRhGe3 at a pressure of 19.6 GPa and the transition temperature TC reaches a maximum value of 1.3 K at 21.5 GPa. This finding provides an opportunity to establish systematic correlations between superconductivity and material properties within this family. Though ambient-pressure unit-cell volumes and critical pressures for superconductivity vary substantially across the series, all family members reach a maximum TmaxC at a common (±1.7%) critical cell volume Vcrit, and TmaxC at Vcrit increases with increasing spin-orbit coupling strength of the d electrons. These correlations show that substantial Kondo and spin-orbit couplings favor superconductivity in this family, the latter reflecting the role of broken centrosymmetry.},
doi = {10.1103/PhysRevB.97.064514},
journal = {Physical Review B},
number = 6,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}
Web of Science
Figures / Tables:

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