论文标题
观察非中心淋巴结链半微分BA5IN4BI5中超导性的观察
Observation of superconductivity in the noncentrosymmetric nodal chain semimetal Ba5In4Bi5
论文作者
论文摘要
与超导性和拓扑非平凡的条带结构的结合为通往新型量子状态（例如拓扑超导性）提供了有希望的途径。在这里，我们报告了BA5IN4BI5单晶中超导性（4.1 K）的首次观察，这是一种非中心对称拓扑半学的，具有高对称点r和X的节点链环。超导体。从磁敏感性和特定的热量测量值中提出了批量超导性。结果表明，BA5IN4BI5提供了一个新的平台，用于探索超导性与拓扑性非平凡谱系拓扑的关系。
The combination with superconductivity and topological nontrivial band structure provides a promising route towards novel quantum states such as topological superconductivity. Here, we report the first observation of superconductivity (4.1 K) in Ba5In4Bi5 single crystal, a noncentrosymmetric topological semimetal featuring nodal chain loops at the high-symmetry points R and X. The magnetization, resistivity, and specific heat capacity measurements reveal that Ba5In4Bi5 is a moderately coupled type-II Bardeen-Cooper-Schrieffer superconductor. Bulk superconductivity is suggested from the magnetic susceptibility and specific heat measurements. The results show that Ba5In4Bi5 provides a new platform for exploring the relationship of superconductivity and topological nontrivial band topology.
