Superconductivity in High-Entropy-Alloy Telluride AgInSnPbBiTe5

Abstract

A polycrystalline sample of the high-entropy-alloy-type telluride AgInSnPbBiTe5 was synthesized using high-pressure synthesis. Superconductivity with a transition temperature (Tc) of 2.6 K was observed in AgInSnPbBiTe5. Elemental and structural analyses revealed that five metals are mixed in a metal site of an NaCl-type structure. Since AgInSnPbBiTe5 has a cation site (Ag, In, Sn, Pb, and Bi) and an anion site (Te), this is the first example of a high-entropy-alloy (HEA) pseudo-binary superconductor.

10 pages, 4 figures, supplemental materials (1 page)

References in corpus (2)

• Anomalous metallic state above the upper critical field of the conventional three-dimensional superconductor AgSnSe2 with strong intrinsic disorder
• Evolution of Anisotropic Displacement Parameters and Superconductivity with Chemical Pressure in BiS2-Based REO0.5F0.5BiS2 (RE = La, Ce, Pr, and Nd)

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• Spontaneous formation of Frenkel defects in high-entropy-alloys-type compound
• Estimation of Grüneisen parameter of high-entropy-alloy-type functional materials
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• Cooperative Ion Conduction Enabled by Site Percolation in Random Substitutional Crystals