| Autor: |
Qi Wang, Xiao-Le Qiu, Cuiying Pei, Ben-Chao Gong, Lingling Gao, Yi Zhao, Weizheng Cao, Changhua Li, Shihao Zhu, Mingxin Zhang, Yulin Chen, Kai Liu, Yanpeng Qi |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 25, Iss 4, p 043001 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/acc546 |
| Popis: |
Kagome materials have been reported to possess abundant and peculiar physical properties, which provide an excellent platform to explore exotic quantum states. We present a discovery of superconductivity in van der Waals material Pd _3 P _2 S _8 composed of Pd kagome lattice under pressure. Pd _3 P _2 S _8 displays superconductivity for those pressures where the semiconducting-like temperature dependence of the resistivity turns into a metallic one. Moreover, it is found that the increased pressure results in a gradual enhancement of superconducting transition temperature, which finally reaches 6.83 K at 79.5 GPa. Combining high-pressure x-ray diffraction, Raman spectroscopy and theoretical calculations, our results demonstrate that the observed superconductivity induced by high pressure in Pd _3 P _2 S _8 is closely related to the formation of amorphous phase, which results from the structural instability due to the enhanced coupling between interlayer Pd and S atoms upon compression. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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