Pressure-driven reentrant superconductivity in the heavy d-electron superconductor Rh17S15 with weak ferromagnetism in the normal state
Xiaofeng Xu, Jiaying Nie, Chunqiang Xu, Ziming Zhu, Xiangzhuo Xing, Yalei Huang, Chutong Zhang, Na Zuo, Chengcheng Zhao, Zheyi Zhang, Wei Zhou, Wenhe Jiao, Sheng Xu, Qin Zhang, Zhu-An Xu, Xiaobing Liu, Dong Qian, Shiyan Li
DOI 10.1103/PhysRevB.111.L161113 · Physical Review B
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Abstract
Superconductivity beyond the conventional Bardeen-Cooper-Schrieffer framework often emerges out of a normal state that is accompanied by exotic magnetism and thereby displays many exceptional transport and thermodynamic properties. Here we report that the normal state of the heavy d-electron superconductor Rh17S15 is characterized by a weak ferromagnetism that persists up to room temperature. We show that the broad hump in its resistivity likely results from the Kondo interaction of the conduction electrons with this magnetism. By applying pressure, superconductivity is fully suppressed first. In the high-pressure regime, however, we observe a second dome of superconductivity with its maximum Tc greater than the ambient pressure value, highlighting the possible unconventional superconductivity in this heavy d-electron sulfide.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Rh17S15 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5.2 | Pressure unresolved | unknown |
| Rh17S15 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5.3 | 117.7 GPa | onset |
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