Anomalous connection between antiferromagnetic and superconducting phases in the pressurized noncentrosymmetric heavy-fermion compound
Abstract
Unconventional superconductivity frequently emerges as the transition temperature of a magnetic phase, typically antiferromagnetic (AFM), is suppressed continuously toward zero temperature. Here in this paper, we report contrary behavior in pressurized CeRhGe3, a noncentrosymmetric heavy-fermion compound. We find that its pressure-tuned AFM transition temperature (TN) appears to avoid a continuous decrease to zero temperature by terminating abruptly above a dome of pressure-induced superconductivity. Near 21.5 GPa, evidence for TN suddenly vanishes, the electrical resistance becomes linear in temperature, and the superconducting transition reaches a maximum. Analysis of high-pressure resistance and x-ray-absorption spectroscopy measurements suggest that the anomalous connection between antiferromagnetic and superconducting phases in pressurized CeRhGe3 is associated with proximity to a critical valence instability.
- Authors:
-
- Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics; Univ. of Chinese Academy of Sciences, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for High Pressure Physics
- Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Inst. of Applied Physics, Shanghai Synchrotron Radiation Facilities
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1495148
- Alternate Identifier(s):
- OSTI ID: 1490506
- Report Number(s):
- LA-UR-17-30186
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 2; 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
Citation Formats
Wang, Honghong, Guo, Jing, Bauer, Eric D., Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, J. D., and Sun, Liling. Anomalous connection between antiferromagnetic and superconducting phases in the pressurized noncentrosymmetric heavy-fermion compound CeRhGe3. United States: N. p., 2019.
Web. doi:10.1103/PhysRevB.99.024504.
Wang, Honghong, Guo, Jing, Bauer, Eric D., Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, J. D., & Sun, Liling. Anomalous connection between antiferromagnetic and superconducting phases in the pressurized noncentrosymmetric heavy-fermion compound CeRhGe3. United States. https://doi.org/10.1103/PhysRevB.99.024504
Wang, Honghong, Guo, Jing, Bauer, Eric D., Sidorov, Vladimir A., Zhao, Hengcan, Zhang, Jiahao, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Yang, Ke, Li, Aiguo, Sun, Peijie, Yang, Yi-feng, Wu, Qi, Xiang, Tao, Thompson, J. D., and Sun, Liling. Thu .
"Anomalous connection between antiferromagnetic and superconducting phases in the pressurized noncentrosymmetric heavy-fermion compound CeRhGe3". United States. https://doi.org/10.1103/PhysRevB.99.024504. https://www.osti.gov/servlets/purl/1495148.
@article{osti_1495148,
title = {Anomalous connection between antiferromagnetic and superconducting phases in the pressurized noncentrosymmetric heavy-fermion compound CeRhGe3},
author = {Wang, Honghong and Guo, Jing and Bauer, Eric D. 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 Sun, Peijie and Yang, Yi-feng and Wu, Qi and Xiang, Tao and Thompson, J. D. and Sun, Liling},
abstractNote = {Unconventional superconductivity frequently emerges as the transition temperature of a magnetic phase, typically antiferromagnetic (AFM), is suppressed continuously toward zero temperature. Here in this paper, we report contrary behavior in pressurized CeRhGe3, a noncentrosymmetric heavy-fermion compound. We find that its pressure-tuned AFM transition temperature (TN) appears to avoid a continuous decrease to zero temperature by terminating abruptly above a dome of pressure-induced superconductivity. Near 21.5 GPa, evidence for TN suddenly vanishes, the electrical resistance becomes linear in temperature, and the superconducting transition reaches a maximum. Analysis of high-pressure resistance and x-ray-absorption spectroscopy measurements suggest that the anomalous connection between antiferromagnetic and superconducting phases in pressurized CeRhGe3 is associated with proximity to a critical valence instability.},
doi = {10.1103/PhysRevB.99.024504},
journal = {Physical Review B},
number = 2,
volume = 99,
place = {United States},
year = {Thu Jan 10 00:00:00 EST 2019},
month = {Thu Jan 10 00:00:00 EST 2019}
}
Web of Science
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