Probing the superconducting ground state of noncentrosymmetric high entropy alloys using muon-spin rotation and relaxation
Recently, high entropy alloys (HEAs) have emerged as a new platform for discovering superconducting materials and offer avenues to explore exotic superconductivity. The highly disordered nature of HEA suggests regular phonon required for BCS superconductivity may be unlikely to occur. Therefore unde...
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| creator | Motla, Kapil Arushi Meena, P K Singh, D Biswas, P K Hillier, A D Singh, R P |
| description | Recently, high entropy alloys (HEAs) have emerged as a new platform for discovering superconducting materials and offer avenues to explore exotic superconductivity. The highly disordered nature of HEA suggests regular phonon required for BCS superconductivity may be unlikely to occur. Therefore understanding the microscopic properties of these superconducting HEA is important. We report the first detailed characterization of the superconducting properties of the noncentrosymmetric (\(\alpha\)-Mn structure) HEA {(HfNb)}\(_{0.10}\){(MoReRu)}\(_{0.90}\), and {(ZrNb)}\(_{0.10}\){(MoReRu)}\(_{0.90}\) by using magnetization, specific heat, AC transport, and muon-spin relaxation/rotation (\(\mu\)SR). Despite the disordered nature, low temperature specific heat and transverse-field muon spin rotation measurements suggest nodeless isotropic superconducting gap and Zero-field \(\mu\)SR measurements confirm that time reversal symmetry is preserved in the superconducting ground state. |
| doi_str_mv | 10.48550/arxiv.2109.03368 |
| format | Article |
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| subjects | Ground state High entropy alloys Low temperature Muon spin relaxation Muon spin rotation Physics - Superconductivity Specific heat Superconductivity |
| title | Probing the superconducting ground state of noncentrosymmetric high entropy alloys using muon-spin rotation and relaxation |
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