论文标题
观察准1D超导体Tase3中拓扑电子结构3
Observation of topological electronic structure in quasi-1D superconductor TaSe3
论文作者
论文摘要
拓扑超导体（TSC）具有托管可能导致非亚伯统计和在量子计算中应用的能力，已成为最近研究的凝结物理学中最深入研究的主题之一。最新的是，仅提出了少数化合物作为内在TSC的候选物，例如掺杂的拓扑绝缘子Cuxbi2Se3和基于铁的超导体FETE0.55SE0.45。在这里，通过执行基于激光和激光的角度分辨光光谱（ARPES），我们系统地研究了准1D超导体Tase3的电子结构，并鉴定了非主导拓扑表面状态。此外，我们的扫描隧道显微镜（STM）研究表明，清洁的裂解表面具有持久的超导间隙，证明它适合进一步研究潜在的Majorana模式。这些结果证明Tase3是稳定且可去角色的化学计量学TSC候选者，因此是研究丰富的新型现象和应用潜力的绝佳平台。
Topological superconductors (TSCs), with the capability to host Majorana bound states that can lead to non-Abelian statistics and application in quantum computation, have been one of the most intensively studied topics in condensed matter physics recently. Up to date, only a few compounds have been proposed as candidates of intrinsic TSCs, such as doped topological insulator CuxBi2Se3 and iron-based superconductor FeTe0.55Se0.45. Here, by carrying out synchrotron and laser based angle-resolved photoemission spectroscopy (ARPES), we systematically investigated the electronic structure of a quasi-1D superconductor TaSe3, and identified the nontrivial topological surface states. In addition, our scanning tunneling microscopy (STM) study revealed a clean cleaved surface with a persistent superconducting gap, proving it suitable for further investigation of potential Majorana modes. These results prove TaSe3 as a stoichiometric TSC candidate that is stable and exfoliable, therefore a great platform for the study of rich novel phenomena and application potentials.
