Muon spin rotation and relaxation in Pr1−xNdxOs4Sb12 : Superconductivity and magnetism in Pr-rich alloys
Muon spin rotation and relaxation in Pr1−xNdxOs4Sb12 : Superconductivity and magnetism in Pr-rich alloys
复制标题
Pr1−xNdxOs4Sb12 中的 μ 子自旋旋转和弛豫：富 Pr 合金中的超导性和磁性
DOI：
10.1103/physrevb.106.144508
复制
发表时间：
2022
影响因子：
3.7
通讯作者：
Tan, Cheng
中科院分区：
文献类型：
--
作者：
Ho, P.-C.;MacLaughlin, D. E.;Maple, M. B.;Shu, Lei;Hillier, A. D.;Bernal, O. O.;Yanagisawa, T.;Biswas, P. K.;Zhang, Jian;Tan, Cheng
使用μ子自旋旋转和弛豫研究了该合金系列的富Pr端。最终化合物是一种非常规的重费米子超导体，它在超导相中表现出与破缺时间反转对称性（TRS）相关的自发磁场。在掺 Nd 合金中没有观察到这样的场，表明 TRS 已经恢复。涡晶格场分布的超流体密度对 Nd 浓度不敏感，表明 TRS 恢复对超导态没有很强的影响。在最低测量温度下，仍可发现有序或无序的静磁性。
The Pr-rich endof the alloy serieshas been studied using muon spin rotation and relaxation. The end compoundis an unconventional heavy-fermion superconductor, which exhibits a spontaneous magnetic field associated with broken time-reversal symmetry (TRS) in the superconducting phase. No such field is observed in the Nd-doped alloys for, indicating that TRS has been restored. The superfluid density from the vortex-lattice field distribution is insensitive to Nd concentration for, indicating that TRS restoration does not have a strong effect on the superconducting state. Nostatic magnetism, ordered or disordered, is found down to the lowest temperatures of measurement.