论文标题
与库仑相互作用的无序金属中的超导性
Superconductivity in a disordered metal with Coulomb interactions
论文作者
论文摘要
我们研究了强烈无序超导薄膜的状态（DOS）的电子密度。我们发现，使用扫描隧道显微镜（STM），在通过施加磁场获得的正常相中，DOS向费米水平降低。 DOS显示了空间波动，其长度尺度与依赖能量的DOS相关，并且在正常和超导阶段相似。这表明库仑相互作用导致在无序超导体的正常阶段的空间变化。
We study the electronic densities of states (DOS) of strongly disordered superconducting thin films of TiN. We find, using Scanning Tunneling Microscopy (STM) that the DOS decreases towards the Fermi level in the normal phase obtained by applying magnetic fields. The DOS shows spatial fluctuations whose length scale is related to the energy dependent DOS and is similar in normal and superconducting phases. This suggests that Coulomb interactions lead to a spatially varying DOS in the normal phase of a disordered superconductor.
