Superconductivity in CuAl2-type Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 with a high-entropy-alloy transition metal site

Materials Research Letters

Tatsuma D. Matsuda¹  Yoshikazu Mizuguchi¹  Md. Riad Kasem¹ 

[1] Tokyo Metropolitan University;

关键词: high-entropy-alloy;    material design;    new superconductor;    cual2-type structure;   

DOI  :  10.1080/21663831.2020.1860147

来源: DOAJ

【 摘 要 】

Research on high-entropy-alloy (HEA) superconductors is a growing field in material science. In this study, we explored new HEA-type superconductors and discovered a CuAl2-type superconductor Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 with a HEA-type transition metal site. A superconducting transition was observed at 8.0 K after electrical resistivity, magnetization, and specific heat measurements. The bulk characteristics of the superconductivity were confirmed through the specific heat measurements. The discovery of superconductivity in HEA-type Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 will provide a novel pathway to explore new HEA-type superconductors and investigate the relationship between the mixing entropy and superconductivity of HEA-type compounds.

【 授权许可】

Unknown