| Autor: |
Ruan, Bin-Bin, Wang, Xiao-Chuan, Yu, Jia, Pan, Bo-Jin, Mu, Qing-Ge, Liu, Tong, Chen, Gen-Fu, Ren, Zhi-An |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Superconductor Science & Technology, 2017. 30(2): p. 025008 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/1361-6668/30/2/025008 |
| Popis: |
We report the synthesis, crystal structure, superconductivity and physical property characterizations of the ternary equiatomic compound ScRuSi. Polycrystalline samples of ScRuSi were prepared by an arc-melting method. The as-prepared samples were identified as the orthorhombic Co2P-type o-ScRuSi by the powder X-ray diffraction analysis. Electrical resistivity measurement shows o-ScRuSi to be a metal which superconducts below a Tc of 3.1 K, and the upper critical field {\mu}0Hc2(0) is estimated to be 0.87 T. The magnetization and specific heat measurements confirm the bulk type-II superconductivity in o-ScRuSi, with the specific heat jump within the BCS weak coupling limit. o-ScRuSi is the first Co2P-type superconductor containing scandium. After annealing at 1273 K for a week, o-ScRuSi transforms into the hexagonal Fe2P-type h-ScRuSi, and the latter is a Pauli-paramagnetic metal with no superconductivity observed above 1.8 K. |
| Databáze: |
arXiv |
| Externí odkaz: |
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