In this work, we study the magnetic impurity resonance states in monolayer FeSe superconductor for different pairing symmetries. When the magnetic impurity is hybridized to one of the two electronic pockets at M point, we find that there will be two in-gap resonance peaks located symmetrically at the two sides of the Fermi energy. The intensities of the two peaks are comparable for s-wave and d-wave pairings. For the p-wave pairing, the intensity of the positive resonance peak is much smaller than the negative one. When the magnetic impurity is hybridized to the two electronic pockets simultaneously and spin-orbit coupling is considered, the two resonance peaks will be split into four for d-wave pairing. This splitting is absent for s-wave and p-wave pairings. These features can be considered as signatures to distinguish the pairing potential symmetries.

在这项工作中，我们研究了具有不同配对对称性的单层FeSe超导体中的磁杂质共振态。当磁性杂质在M点与两个电子腔之一杂化时，我们发现在费米能量的两侧对称存在两个间隙内共振峰。对于s-波和d-波配对，两个峰的强度是可比的。对于p波配对，正共振峰的强度远小于负共振峰的强度。当磁性杂质同时与两个电子腔杂化并考虑自旋轨道耦合时，对于d波配对，两个共振峰将分为四个。这种分裂是不存在的s波和p波配对。这些特征可以被认为是区分潜在配对对称性的特征。