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arXiv · 2001.04640

Superconducting properties of high-entropy-alloy tellurides M-Te (M: Ag, In, Cd, Sn, Sb, Pb, Bi) with a NaCl-type structure

Md. Riad Kasem·Kazuhisa Hoshi·Rajveer Jha·Masayoshi Katsuno·Aichi Yamashita·Yosuke Goto·Tatsuma D. Matsuda·Yuji Aoki·Yoshikazu Mizuguchi
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Abstract

High-entropy-alloy-type tellurides M-Te, which contain five different metals of M = Ag, In, Cd, Sn, Sb, Pb, and Bi, were synthesized using high pressure synthesis. Structural characterization revealed that all the obtained samples have a cubic NaCl-type structure. Six samples, namely AgCdSnSbPbTe5, AgInSnSbPbTe5, AgCdInSnSbTe5, AgCdSnPbBiTe5, AgCdInPbBiTe5, and AgCdInSnBiTe5 showed superconductivity. The highest transition temperature (Tc) among those samples was 1.4 K for AgInSnSbPbTe5. A sample of AgCdInSbPbTe5 showed a semiconductor-like transport behavior. From the relationship between Tc and lattice constant, it was found that a higher Tc is observed for a telluride with a larger lattice constant.

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Md. Riad Kasem, Kazuhisa Hoshi, Rajveer Jha, Masayoshi Katsuno, Aichi Yamashita, Yosuke Goto, Tatsuma D. Matsuda, Yuji Aoki, Yoshikazu Mizuguchi. 2020-01-14. Superconducting properties of high-entropy-alloy tellurides M-Te (M: Ag, In, Cd, Sn, Sb, Pb, Bi) with a NaCl-type structure. https://doi.org/10.35848/1882-0786/ab7482

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