Superconductivity in the Face Centered Cubic $\rm W_{n-x}Mo_{x}RhIrPt_{2}$ High Entropy Alloy

TL;DR

This paper reports the synthesis and characterization of face centered cubic high entropy alloys that exhibit superconductivity, exploring their structural stability and superconducting properties in relation to electron counts.

Contribution

It introduces a new class of FCC high entropy alloys with superconductivity and discusses their stability and properties compared to existing alloys.

Findings

Single phase FCC HEAs exhibit superconductivity.

Superconducting properties follow known metallic alloy trends.

Insights into FCC stability in HEAs are provided.

Abstract

We report single phase superconducting face centered cubic (FCC) intermetallic high entropy alloys (HEAs) synthesized via splat cooling. The single phase materials fall at electron counts in the HEA superconductor alloy family where structural stability and optimal superconducting electron counts clash. The materials' superconducting properties follow the general trends published for metallic alloys. Many of the superconducting characteristics are summarized. Insights are provided as to why an FCC structure may be stable.