论文标题
磁场引起的iSing超导体中的“幻影”差距
Magnetic field-induced "mirage" gap in an Ising superconductor
论文作者
论文摘要
由于轨道或Zeeman引起的对破裂，超导性通常被磁场破坏。令人惊讶的是，在具有自旋轨道相互作用的二维超导体中，自旋谷锁定使超导状态具有对大磁场的弹性。我们研究了考虑障碍的磁场中这种Ising超导体的光谱特性。面内磁场和ISIN自旋轨道耦合的相互作用导致非共线有效场。我们发现，新兴的单线和三重态配对相关性在“幻影”缝隙的发生中表现出来：在旋转轨道耦合强度的（高）能量的（高）能量，频谱中出现的间隙状结构反映了主超导间隙。我们表明，这些海市rage间差距是相等的旋转三重态有限能源配对相关性的签名，并且由于它们的奇数奇偶元对Intervelley散射敏感。
Superconductivity is commonly destroyed by a magnetic field due to orbital or Zeeman-induced pair breaking. Surprisingly, the spin-valley locking in a two-dimensional superconductor with spin-orbit interaction makes the superconducting state resilient to large magnetic fields. We investigate the spectral properties of such an Ising superconductor in a magnetic field taking into account disorder. The interplay of the in-plane magnetic field and the Ising spin-orbit coupling leads to noncollinear effective fields. We find that the emerging singlet and triplet pairing correlations manifest themselves in the occurrence of "mirage" gaps: at (high) energies of the order of the spin-orbit coupling strength, a gap-like structure in the spectrum emerges that mirrors the main superconducting gap. We show that these mirage gaps are signatures of the equal-spin triplet finite-energy pairing correlations and due to their odd parity are sensitive to intervalley scattering.
