论文标题
节点线半径SNTAS_2中的超导性和弱反定位
Superconductivity and weak anti-localization in nodal-line semimetal SnTaS_2
论文作者
论文摘要
具有超导特性的拓扑半学为探索拓扑超导体的特性提供了一个新兴平台。我们报告了对过渡金属二分法SNTAS2的高质量单晶的磁化和磁通测量。它是一个淋巴结线半学，在TC = 2.9 K以下的超导过渡。中度各向异性（3.1）在沿H || C和H || AB平面的上部临界场中观察到中等各向异性（3.1）。在正常状态下，我们观察到巨大的磁耐药性和弱抗本地化作用，这些效应可明确确认SNTAS2中拓扑特征。因此，可以在该材料中研究真正的拓扑特征，尤其是关于阶参数对称性的微观起源。
Topological semimetals with superconducting properties provide an emergent platform to explore the properties of topological superconductors. We report magnetization, and magneto-transport measurements on high quality single crystals of transition metal dichalcogenide SnTaS2. It is a nodal line semimetal with superconducting transition below Tc = 2.9 K. Moderate anisotropy (3.1) is observed in upper critical fields along H||c and H||ab plane. In the normal state we observe large magneto-resistance and weak anti-localization effect that provide unambiguous confirmation of topological features in SnTaS2. Therefore, genuine topological characteristics can be studied in this material, particularly with regard to microscopic origin of order parameter symmetry.
