论文标题
夜间拓扑绝缘子中的准粒子干扰,并具有列神经超导性
Quasiparticle interference in doped topological insulators with nematic superconductivity
论文作者
论文摘要
我们从理论上研究了用列级参数的超导拓扑绝缘子中的准粒子干扰。该顺序参数自发打破了晶体的旋转对称性。在坐标和动量空间中的准颗粒干扰图中可见这种旋转对称性破裂。对于小偏置电压,准颗粒干扰与晶体对称性不相关,并显示出列表行为。如果偏置电压与顺序参数干扰图片的值相当,则与正常状态的干扰图相似。干扰模式对列的方向敏感。我们将结果与现有的实验数据进行比较。
We theoretically investigate quasiparticle interference in superconducting topological insulators with the nematic order parameter. This order parameter spontaneously breaks the rotational symmetry of the crystal. Such rotational symmetry breaking is visible in the quasiparticle interference picture both in coordinate and momentum spaces. For a small bias voltages quasiparticle interference incommensurate with the crystal symmetry and shows nematic behavior. If the bias voltage is comparable with the value of the order parameter interference picture is similar to the interference picture of the normal state. Interference patterns are sensitive to the orientation of the nematicity. We compare our results with the existing experimental data.