论文标题
非晶状体线结节复合CASB $ _2 $中的超导率
Superconductivity in the nonsymmorphic line-nodal compound CaSb$_2$
论文作者
论文摘要
我们发现CASB $ _2 $中的超导性通过电抗性，磁性敏感性和特定热测量值，其过渡温度为1.7 K。该材料在非词形结构中结晶，预计即使在存在旋转轨道耦合的情况下，也会在散装电子带结构中具有多个dirac节点线。我们讨论了主要源自其中一个锑部位的准2维带的拓扑超导性。
We found superconductivity in CaSb$_2$ with the transition temperature of 1.7 K by means of electrical-resistivity, magnetic-susceptibility, and specific-heat measurements. This material crystallizes in a nonsymmorphic structure and is predicted to have multiple Dirac nodal lines in the bulk electronic band structure protected by symmetry even in the presence of spin-orbit coupling. We discuss a possible topological superconductivity for the quasi-2-dimensional band originating mainly from one of the antimony sites.
