标题： 约瑟夫森异常涡旋 显示英文标题

标题： Josephson anomalous vortices

摘要： 我们证明了在具有强自旋轨道耦合的弱铁磁材料作为势垒的约瑟夫森结中，存在与奇频三重配对相关的循环电流涡旋。通过对称性分析和微观方法，我们表明超导自由能中存在一个额外的项——旋转不变量，这使得即使之前考虑的Lifshitz不变量消失时，仍然可能出现磁电效应。我们还表明，这些涡旋的大小、形状和位置可以通过操控弱连接中的Rashba自旋轨道耦合来控制，并且可以通过扫描磁强计技术检测到这些涡旋。此外，我们还证明了超导关联的横向三重分量可以形成一种织构。 显示英文摘要

摘要： We show that vortices with circulating current, related with odd-frequency triplet pairing, appear in Josephson junctions where the barrier is a weak ferromagnet with strong spin-orbit coupling. By both symmetry analysis and microscopic methods we show that there is an additional term - a rotary invariant - in the superconducting free energy which allows for magnetoelectric effects even when the previously considered Lifshitz invariant vanishes. We show that the size, shape, and position of these vortices can be controlled by manipulating Rashba spin-orbit coupling in the weak link, via gates, and we suggest that these vortices could be detected via scanning magnetometry techniques. We also show that the transverse triplet components of the superconducting correlations can form a texture.