Microscopic study of superconductivity in the noncentrosymmetric α-Mn alloy NbTaOs2

R. K. Kushwaha; Arushi; S. Jangid; P. K. Meena; R. Stewart; A. D. Hillier; R. P. Singh

doi:10.1103/hpj7-qnzq

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Microscopic study of superconductivity in the noncentrosymmetric α-Mn alloy NbTaOs2

R. K. Kushwaha, Arushi, S. Jangid, P. K. Meena, R. Stewart, A. D. Hillier, R. P. Singh

DOI 10.1103/hpj7-qnzq · Physical Review B

T1

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Abstract

Noncentrosymmetric superconductors provide a unique platform to explore the interplay of antisymmetric spin-orbit coupling and pairing symmetry. In this study, we report the synthesis and comprehensive characterization of the noncentrosymmetric ternary α-Mn compound NbTaOs2 using electrical resistivity, magnetization, specific heat, and muon spin rotation/relaxation (μSR). It confirms that NbTaOs2 is a type-II bulk superconductor. Transverse-field μSR and specific-heat data consistently indicate a moderately coupled, fully gapped superconducting state.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
NbTaOs2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.9	Pressure not reported	zero_resistance
NbTaOs2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.4	Pressure not reported	onset
NbTaOs2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.4	Pressure not reported	midpoint
NbTaOs2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.4	Pressure not reported	unknown