FORMATION AND STABILITY OF NEW SUPERCONDUCTING HIGH ENTROPY ALLOY SOLID SOLUTIONS

Abstract

At the beginning of this century, high entropy alloys (HEAs) became an interesting topic in terms of fundamental science after it had been experimentally observed a large mixing entropy can stabilize a solid solution, overcoming the mixing enthalpy which form ordered intermetallics. Beyond the formation aspect, the features of the electronic structure were a new question which arose especially after the first superconducting HEA was discovered. In this work, I introduce multiple new high entropy alloys stabilized with splat cooling after arc melting. Since this is a study of a very fundamental science with limited direct applications, I intend to reiterate some of the fundamental science required to identify and understand what’s happening. Afterward, I will introduce novel superconducting solid solution HEAs at each extreme of the superconducting regime of transition metals. I’ll conclude with a few projects which would be interesting to continue studying.