Showing 1–1 of 1 results for author: Lv, B J

$μ$SR study on noncentrosymmetric superconductor NbGe$_{\mathbf{2}}$

Authors: J. C. Jiao, K. W. Chen, A. D. Hillier, T. U. Ito, W. Higemoto, Z. Li, B. J. Lv, Z. -A. Xu, L. Shu

Abstract: We report a muon spin relaxation ($μ$SR) study on polycrystalline noncentrosymmetric superconductor NbGe$_2$~with the superconducting transition temperature $T_c=2.0\sim2.1$~K. Zero-field $μ$SR~experiment indicates the absence of spontaneous magnetic field in the superconducting state, showing the preservation of time-reversal symmetry in the superconducting state. Transverse-field $μ$SR~experimen… ▽ More We report a muon spin relaxation ($μ$SR) study on polycrystalline noncentrosymmetric superconductor NbGe$_2$~with the superconducting transition temperature $T_c=2.0\sim2.1$~K. Zero-field $μ$SR~experiment indicates the absence of spontaneous magnetic field in the superconducting state, showing the preservation of time-reversal symmetry in the superconducting state. Transverse-field $μ$SR~experiment is performed to map the phase diagram of NbGe$_2$, from which clear evidence of both type-I and type-II superconductivity is obtained. More importantly, we clearly delineate the region in the phase diagram where type-I and type-II superconductivity coexist. △ Less

Submitted 12 December, 2024; originally announced December 2024.

Comments: Accepted by Physical. Rev. B