Superconducting properties of the noncentrosymmetric superconductor LaPtGe

TL;DR

This study investigates the superconducting characteristics of LaPtGe, a noncentrosymmetric superconductor, confirming its type-II nature, transition temperature, and preserved time-reversal symmetry through various experimental techniques.

Contribution

First comprehensive characterization of LaPtGe's superconducting properties, including its structure, transition temperature, and time-reversal symmetry status.

Findings

LaPtGe is a type-II superconductor with T_c ≈ 3.05 K.

Superconductivity preserves time-reversal symmetry.

LaPtGe crystallizes in a noncentrosymmetric α-ThSi2 structure.

Abstract

We report superconducting properties of noncentrosymmetric superconductor LaPtGe which crystallizes in noncentrosymmetric $ \alpha $-ThSi$ _{2} $ structure. The magnetization, resistivity and specific heat measurements confirm that LaPtGe is a type-II bulk superconductor with a transition temperature T$ _{c} $ = 3.05 $ \pm $ 0.05 K. Muon-spin relaxation/rotation measurements confirms that time reversal preserved in the superconducting ground state.