Boron based new high entropy alloy superconductor Mo<sub>0.11</sub>W<sub>0.11</sub>V<sub>0.11</sub>Re<sub>0.34</sub>B<sub>0.33</sub>
Kapil Motla, Vijay Soni, P. K. Meena, R. P. Singh
Abstract
Abstract Superconducting high entropy alloys (HEAs) are new members of disordered superconductors. We report the synthesis and investigation of a new superconducting high entropy alloy Mo 0.11 W 0.11 V 0.11 Re 0.34 B 0.33 (MWVRB). It crystallized in the tetragonal CuAl 2 crystal structure with space group (I4/ mcm ). Comprehensive transport, magnetization and heat capacity measurements confirmed bulk type-II superconductivity having transition temperature T C = 4.0 K. The low temperature electronic specific heat suggests a fully gapped superconducting state in the weak coupling limit.
Topics & Concepts
SuperconductivityTetragonal crystal systemMaterials scienceBoronCondensed matter physicsAlloyMagnetizationHeat capacitySpecific heatTransition temperatureCrystal structureCrystallographyThermodynamicsPhysicsMetallurgyMagnetic fieldChemistryQuantum mechanicsNuclear physicsHigh Entropy Alloys StudiesHigh-Temperature Coating BehaviorsIntermetallics and Advanced Alloy Properties