We report the crystal structure and superconducting properties of new V5+2xNb35−xMo35−xIr10Pt15 high-entropy alloys (HEAs) for x in the range of 0 (Formula presented.) x (Formula presented.) 10. These HEAs are found to crystallize in a cubic A15-type structure and have a weakly coupled, fully gapped superconducting state. A maximum Tc of 5.18 K and zero-temperature upper critical field (Formula presented.) (0) of 6.4 T are observed at x = 0, and both quantities decrease monotonically with the increase of V content x. In addition, Tc shows an increase with increasing valence electron concentration from 6.4 to 6.5, which is compared with other A15-type HEA and binary superconductors.
CITATION STYLE
Liu, B., Wu, J., Cui, Y., Zhu, Q., Xiao, G., Wu, S., … Ren, Z. (2021). Superconductivity in Cubic A15-type V–Nb–Mo–Ir–Pt High-Entropy Alloys. Frontiers in Physics, 9. https://doi.org/10.3389/fphy.2021.651808
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