Superconductivity in CuAl₂-type Co_0.2Ni_0.1Cu_0.1Rh_0.3Ir_0.3Zr₂ with a high-entropy-alloy transition metal site

Synthesis of new high-entropy alloy-type Nb3 (Al, Sn, Ge, Ga, Si) superconductors

“…Interestingly, the superconducting transition observed from Cel was relatively broad compared to pure Nb3M systems [23,24,27]. A broad transition was also observed in an HEA-type Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 superconductor [19]. Therefore, the commonality in the broad specific heat jump at Tc may indicate the possibility of a universal phenomenon for HEA-type superconductors.…”

“…Thus far, we have extended the concept of HEA to compounds [15][16][17][18][19][20][21][22], wherein one of the crystallographic sites is high-entropy alloyed. Recently, we reported layered superconductors with HEA-type crystallographic sites: HEA-type cuprate RE123 (RE: rare earth elements) and REO0.5F0.5BiS2 with a HEA-type rare earth (RE) site [15][16][17].…”

Probing the superconducting ground state of noncentrosymmetric high-entropy alloys using muon-spin rotation and relaxation

“…Also, they show retention of superconductivity at very high pressure [13]. Superconductivity was first reported in the highentropy alloy Ta 34 Nb 33 Hf 8 Zr 14 Ti 11 [14]; since then, it has been observed in a few others high-entropy alloys [15][16][17][18][19][20][21]. To date, most of the research in HEA superconductors has been focused on discovering new HEA superconducting materials that crystallize in various structures and enhance the superconducting transition temperature.…”

Probing the superconducting ground state of noncentrosymmetric high entropy alloys using muon-spin rotation and relaxation

“…Also, it shows retention of superconductivity at very high pressure [13]. Superconductivity was first reported in the high entropy alloy, Ta 34 Nb 33 Hf 8 Zr 14 Ti 11 [14], since then it has been observed in a few others high entropy alloys [15][16][17][18][20][21][22]. To date, most of the research in HEA superconductors has been focused on discovering new HEA superconducting materials that crystallises in various structures and enhancing the superconducting transition temperature.…”