论文标题
两波段超导体中的高磁场超导率
High magnetic field superconductivity in a two-band superconductor
论文作者
论文摘要
当将外部磁场应用于超导体时，轨道和Pauli parmagnetic成对效应控制上临界磁场的极限，在超导率分解之前，该磁场可以支持。实验研究表明，许多多次多次超导体表现出侵犯理论上预测极限的上部临界磁场的值，从而导致许多研究处理允许这一目标的基本机制。在这项工作中，我们考虑由外部磁场在超导体中的外部磁场引起的旋转裂解，两个相关的带靠近费米水平，并表明带有频带间超导配对的存在会导致违反Pairi-Chandrasekhar-Clogston limition the the Prigint Prigint Proiteg the Pright Empert Empert Empert磁场的高场重新进入超导性。
When applying an external magnetic field to a superconductor, orbital and Pauli paramagnetic pairbreaking effects govern the limit of the upper critical magnetic field that can be supported before superconductivity breaks down. Experimental studies have shown that many multiband superconductors exhibit values of the upper critical magnetic field that violate the theoretically predicted limit, giving rise to many studies treating the underlying mechanisms that allow this. In this work we consider spin-splitting induced by an external magnetic field in a superconductor with two relevant bands close to the Fermi level, and show that the presence of interband superconducting pairing produces high-field reentrant superconductivity violating the Pauli-Chandrasekhar-Clogston limit for the value of the upper critical magnetic field.
