论文标题
六角形翘曲引起的拓扑绝缘体中的列非电导率
Nematic superconductivity in topological insulators induced by hexagonal warping
论文作者
论文摘要
我们研究了掺杂拓扑绝缘子的大体状态的超导特性。我们获得六角形翘曲可以使用$ e_u $配对稳定列型自旋超导阶段，而打开全间隙的列级参数的方向是基态。该顺序参数表现出非BCS行为。订单参数与$δ（0）/t_c $的临界温度的比率不同于BCS比率。这取决于化学潜力和六角形翘曲的价值。我们讨论了获得的结果的相关性来解释实验观察结果。
We study superconducting properties of the bulk states of a doped topological insulator. We obtain that the hexagonal warping stabilizes the nematic spin-triplet superconducting phase with $E_u$ pairing and the direction of the nematic order parameter which opens the full gap is the ground state. This order parameter exhibits non-BCS behavior. The ratio of the order parameter to the critical temperature of $Δ(0)/T_c$ differs from the BCS ratio. It depends on the chemical potential and the value of the hexagonal warping. We discuss the relevance of the obtained results for the explanation of the experimental observations.
