Superconductivity in high-entropy alloy system containing Th

Abstract

Th-containing superconducting high entropy system with the nomi-nal composition (NbTa)0.67(MoWTh)0.33 was synthesized. Its structural and physical properties were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, specific heat, resistivity and magnetic measurements.Two main phases of alloy were observed: major bcc structure and minor fcc. The experimental results were supportedby numerical simulation by the DFT Korringa-Kohn-Rostokermethod with the coherent potential approximation (KKR-CPA).