Pairing-channel reconstruction by Ising spin-orbit coupling in a multiorbital triangular-lattice model
This study investigated how Ising spin-orbit coupling (SOC) in a two-orbital triangular lattice changes pairing channels beyond simple spin locking. It found that Ising SOC reshapes Fermi surfaces and coherence factors, leading to a competition between an E state (triplet) and an A1 state (topological singlet). This mechanism allows for the creation of both Ising-triplet and topological singlet superconductivity.