Shang, T.Wei, WensenBaines, C.Zhang, J. L.Du, H. F.Medarde, M.Shi, M.Mesot, J.Shiroka, T.2018-12-132018-12-132018-12-132018-11-1910.1103/PhysRevB.98.180504https://infoscience.epfl.ch/handle/20.500.14299/152675WOS:000450547400002The noncentrosymmetric superconductor Mo3Rh2N, with T-c = 4.6 K, adopts a beta-Mn-type structure (space group P4(1)32), similar to that of Mo3Al2C. Its bulk superconductivity was characterized by magnetization and heat-capacity measurements, while its microscopic electronic properties were investigated by means of muon-spin rotation and relaxation (mu SR). The low-temperature superfluid density, measured via transverse-field (TF)-mu SR, evidences a fully gapped superconducting state with Delta(0) = 1.73k(B)T(c), very close to 1.76k(B)T(c), the BCS gap value for the weak-coupling case, and a magnetic penetration depth lambda(0) = 586 nm. The absence of spontaneous magnetic fields below the onset of superconductivity, as determined by zero-field (ZF)-mu SR measurements, hints at a preserved time-reversal symmetry in the superconducting state. Both TF- and ZF-mu SR results evidence a spin-singlet pairing in Mo3Rh2N.Materials Science, MultidisciplinaryPhysics, AppliedPhysics, Condensed MatterMaterials SciencePhysicssymmetrytext::journal::journal article::research article