论文标题
与电子nematicity共存的铜酸盐超导体的电磁反应
Electromagnetic response of cuprate superconductors with coexisting electronic nematicity
论文作者
论文摘要
电子列表已成为铜酸盐超导体的关键特征，但是，其与电磁反应等基本特性的相关性尚不清楚。在这里，在动力学能量驱动的超导率的框架内研究了电磁反应中电磁反应的nem级状态强度依赖性。结果表明，电磁反应的显着各向异性是由电子词素引起的。特别是，除了超导间隙的纯d波分量外，超导间隙的纯S波分量是由电子nematicity产生的，因此D-Wave成分和S-WAVE成分存在共存和竞争。这种共存和竞争会导致最大凝结能出现在电子非态性的最佳强度附近，然后在弱和强强度区域中降低，这又导致超导性的增强，并引起了超级富集dementy dome-ordore状态强度的圆顶状形状的形状。
The electronically nematic order has emerged as a key feature of cuprate superconductors,however, its correlation with the fundamental properties such as the electromagnetic response remains unclear. Here the nematic-order state strength dependence of the electromagnetic response in cuprate superconductors is investigated within the framework of the kinetic-energy-driven superconductivity. It is shown that a significant anisotropy of the electromagnetic response is caused by the electronic nematicity. In particular, in addition to the pure d-wave component of the superconducting gap, the pure s-wave component of the superconducting gap is generated by the electronic nematicity, therefore there is a coexistence and competition of the d-wave component and the s-wave component. This coexistence and competition leads to that the maximal condensation energy appears at around the optimal strength of the electronic nematicity, and then decreases in both the weak and strong strength regions, which in turn induces the enhancement of superconductivity, and gives rise to the dome-like shape of the nematic-order state strength dependence of the superfluid density.
