论文标题
具有磁场反转的涡流中非中心超级导体
Vortices with magnetic field inversion in noncentrosymmetric superconductors
论文作者
论文摘要
缺乏空间反转对称性的非中心晶格的超导材料表现出各种有趣的奇偶校验现象，包括磁电效应，自旋极性电流，螺旋状态和异常的约瑟夫森效应。我们证明，在Ginzburg-Landau框架内描述了具有$ o $ $点组对称性的非中心对称超导体，涡流可以在距离涡旋核心一定距离处表现出磁场的反转。与常规的超导涡流形成鲜明对比的是，平等折叠超导体中的磁场逆转导致非单调的干预力，因此，涡流的外在特性，例如涡流结合的状态，涡流量和外观vortex ant-extable ant-extex anti-vortex的外观。
Superconducting materials with noncentrosymmetric lattices lacking space inversion symmetry exhibit a variety of interesting parity-breaking phenomena, including the magneto-electric effect, spin-polarized currents, helical states, and the unusual Josephson effect. We demonstrate, within a Ginzburg-Landau framework describing noncentrosymmetric superconductors with $O$ point group symmetry, that vortices can exhibit an inversion of the magnetic field at a certain distance from the vortex core. In stark contrast to conventional superconducting vortices, the magnetic-field reversal in the parity-broken superconductor leads to non-monotonic intervortex forces, and, as a consequence, to the exotic properties of the vortex matter such as the formation of vortex bound states, vortex clusters, and the appearance of metastable vortex/anti-vortex bound states.
