论文标题
具有列和手性超导性的掺杂拓扑绝缘子中的自发应变和磁化
Spontaneous strain and magnetization in doped topological insulators with nematic and chiral superconductivity
论文作者
论文摘要
我们表明，在具有两组分组超导矢量阶参数的掺杂拓扑绝缘子中可能会出现自发应变和自发磁化。效果的细节至关重要地取决于超导顺序参数的对称性，无论是列马还是手性。可以通过磁场的应用从列态到手性态进行过渡，而从手性状态到列的过渡是由外部应变调节的。这些转变与磁化率和机械刚度的跳跃有关。讨论了预测效应的可能实验观察结果。
We show that a spontaneous strain and spontaneous magnetization can arise in the doped topological insulators with a two-component superconducting vector order parameter. The details of the effects crucially depend on the symmetry of the superconducting order parameter, whether it is nematic or chiral. The transition from the nematic state to the chiral one can be performed by application of a magnetic field while the transition from the chiral state to the nematic one is tuned by the external strain. These transitions associated with a jump of the magnetic susceptibility and mechanical stiffness. Possible experimental observations of the predicted effects are discussed.
