论文标题
拓扑超导候选者的超导底层状态ti $ _ {3} $ x（x = ir，sb）
Study of the superconducting ground state of topological superconducting candidates Ti$_{3}$X (X = Ir, Sb)
论文作者
论文摘要
A15化合物的拓扑非平凡带结构由于拓扑超导性的实现而引起了人们的注意。在这里，我们通过MUON光谱测量值报告了A15化合物Ti $ _ {3} $ x（x = ir，sb）中超导基态的微观研究。零场的测量结果表明，这些材料中保留了时间反转对称性。此外，特定的热量和横向场隆隆光谱测量规则规定具有淋巴结或各向异性超导间隙的任何可能性，在超导基态下揭示了常规的S波性质。这项工作将A15化合物Ti $ _ {3} $ x（x = ir，sb）分类为时间反转的拓扑超导体。
The topologically non-trivial band structure of A15 compounds has drawn attention owing to the possible realization of topological superconductivity. Here, we report a microscopic investigation of the superconducting ground state in A15 compound Ti$_{3}$X (X = Ir, Sb) by muon spectroscopy measurements. Zero field muon measurements have shown that time-reversal symmetry is preserved in these materials. Furthermore, specific heat and a transverse field muon spectroscopy measurement rule out any possibility to have a nodal or anisotropic superconducting gap, revealing a conventional s-wave nature in the superconducting ground state. This work classifies A15 compound Ti$_{3}$X (X = Ir, Sb) as a time-reversal preserved topological superconductor.
