论文标题
电子光谱中的拓扑转换：艾伯里科索夫和约瑟夫森涡流之间的跨界
Topological transitions in electronic spectra: Crossover between Abrikosov and Josephson vortices
论文作者
论文摘要
在Bogoliubov-De Gennes理论中分析了II型超导体中的平面缺陷捕获的涡流线的电子结构。在缺陷平面处的电子和孔的正常反射导致在频谱和形成新型的准粒子状态下跳过或沿缺陷滑行的拓扑跃迁。这种拓扑过渡似乎是从艾伯里科索夫（Abrikosov）到约瑟夫森（Josephson）涡流类型的交叉初始阶段的标志，在量化的准粒子水平的特定行为和状态密度的特定行为中揭示了。产生的硬和软间隙的增加会影响沿缺陷平面的涡流迁移率，并在隧道频谱特征中零偏置异常的分裂。
The electronic structure of a vortex line trapped by a planar defect in a type-II superconductor is analyzed within the Bogoliubov-de Gennes theory. The normal reflection of electrons and holes at the defect plane results in the topological transition in the spectrum and formation of a new type of quasiparticle states skipping or gliding along the defect. This topological transition appears to be a hallmark of the initial stage of the crossover from the Abrikosov to the Josephson vortex type revealing in the specific behavior of the quantized quasiparticle levels and density of states. The increase in the resulting hard and soft gaps affects the vortex mobility along the defect plane and splitting of the zero bias anomaly in the tunneling spectral characteristics.
