1] College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China [2] Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, 210023, China.
Sci Rep. 2014 Jun 11;4:5218. doi: 10.1038/srep05218.
We study superconducting states in the presence of spin-orbital coupling and Zeeman field. It is found that a phase transition from a Fulde-Ferrell-Larkin-Ovchinnikov state to the topological superconducting state occurs upon increasing the spin-orbital coupling. The nature of this topological phase transition and its critical property are investigated numerically. Physical properties of the topological superconducting phase are also explored. Moreover, the local density of states is calculated, through which the topological feature may be tested experimentally.
我们研究了存在自旋轨道耦合和塞曼场时的超导态。研究发现，随着自旋轨道耦合的增加，会从 Fulde-Ferrell-Larkin-Ovchinnikov 态到拓扑超导态发生相变。数值研究了这个拓扑相变的性质及其临界性质。还探讨了拓扑超导相的物理性质。此外，还计算了局域态密度，通过它可以实验检验拓扑特征。
