Unveiling superconducting properties of an equiatomic hexagonal high entropy alloy via muon spin relaxation and rotation measurement

Fuente: arXiv
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Main Authors: Jangid, Sonika, Meena, Pavan Kumar, Atale, Niraj P., Stewart, Rhea, Hillier, Adrian D., Singh, R. P.
Format: Preprint
Published: 2025
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author Jangid, Sonika
Meena, Pavan Kumar
Atale, Niraj P.
Stewart, Rhea
Hillier, Adrian D.
Singh, R. P.
author_facet Jangid, Sonika
Meena, Pavan Kumar
Atale, Niraj P.
Stewart, Rhea
Hillier, Adrian D.
Singh, R. P.
contents Superconducting high-entropy alloys (HEAs) present a unique platform for studying the effect of disorder, composition, and crystal structure on superconducting pairing. In this study, we present a comprehensive bulk and microscopic investigation of the rarely observed equiatomic hexagonal HEA Nb-Mo-Ru-Re-Ir using magnetization, resistivity, heat capacity, and muon spin relaxation and rotation ($μ$SR) measurements. Our findings confirm bulk type-II superconductivity with a transition temperature of 4.63(2) K and a high upper critical field. Heat capacity and transverse-field $μ$SR data reveal conventional s-wave superconductivity, while zero-field $μ$SR results suggest the preservation of time-reversal symmetry in the superconducting state. These findings provide valuable insights into the superconducting pairing mechanism in disordered multicomponent systems.
format Preprint
id arxiv_https___arxiv_org_abs_2503_24287
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Unveiling superconducting properties of an equiatomic hexagonal high entropy alloy via muon spin relaxation and rotation measurement
Jangid, Sonika
Meena, Pavan Kumar
Atale, Niraj P.
Stewart, Rhea
Hillier, Adrian D.
Singh, R. P.
Superconductivity
Superconducting high-entropy alloys (HEAs) present a unique platform for studying the effect of disorder, composition, and crystal structure on superconducting pairing. In this study, we present a comprehensive bulk and microscopic investigation of the rarely observed equiatomic hexagonal HEA Nb-Mo-Ru-Re-Ir using magnetization, resistivity, heat capacity, and muon spin relaxation and rotation ($μ$SR) measurements. Our findings confirm bulk type-II superconductivity with a transition temperature of 4.63(2) K and a high upper critical field. Heat capacity and transverse-field $μ$SR data reveal conventional s-wave superconductivity, while zero-field $μ$SR results suggest the preservation of time-reversal symmetry in the superconducting state. These findings provide valuable insights into the superconducting pairing mechanism in disordered multicomponent systems.
title Unveiling superconducting properties of an equiatomic hexagonal high entropy alloy via muon spin relaxation and rotation measurement
topic Superconductivity
url https://arxiv.org/abs/2503.24287