配对
超导电性
物理
凝聚态物理
点反射
奇偶性(物理)
反对称关系
自旋轨道相互作用
良好量子数
单重态
量子力学
激发态
经典力学
协变哈密顿场理论
哈密顿系统
超可积哈密顿系统
数学物理
作者
M. Smidman,M. B. Salamon,Huiqiu Yuan,D. F. Agterberg
标识
DOI:10.1088/1361-6633/80/3/036501
摘要
In non-centrosymmetric superconductors, where the crystal structure lacks a centre of inversion, parity is no longer a good quantum number and an electronic antisymmetric spin–orbit coupling (ASOC) is allowed to exist by symmetry. If this ASOC is sufficiently large, it has profound consequences on the superconducting state. For example, it generally leads to a superconducting pairing state which is a mixture of spin-singlet and spin-triplet components. The possibility of such novel pairing states, as well as the potential for observing a variety of unusual behaviors, led to intensive theoretical and experimental investigations. Here we review the experimental and theoretical results for superconducting systems lacking inversion symmetry. Firstly we give a conceptual overview of the key theoretical results. We then review the experimental properties of both strongly and weakly correlated bulk materials, as well as two dimensional systems. Here the focus is on evaluating the effects of ASOC on the superconducting properties and the extent to which there is evidence for singlet–triplet mixing. This is followed by a more detailed overview of theoretical aspects of non-centrosymmetric superconductivity. This includes the effects of the ASOC on the pairing symmetry and the superconducting magnetic response, magneto-electric effects, superconducting finite momentum pairing states, and the potential for non-centrosymmetric superconductors to display topological superconductivity.
科研通智能强力驱动
Strongly Powered by AbleSci AI