Robust parity-mixed superconductivity in disordered monolayer transition metal dichalcogenides | |
Article | |
关键词: SPIN-VALLEY LOCKING; TOPOLOGICAL SUPERCONDUCTIVITY; ISING SUPERCONDUCTIVITY; GATED MOS2; LAYER MOS2; NBSE2; ORDER; STATE; FIELD; WAVE; | |
DOI : 10.1103/PhysRevB.98.144518 | |
来源: SCIE |
【 摘 要 】
Monolayer NbSe2 is a nodal topological Ising superconductor at magnetic in-plane fields exceeding the Pauli limit, with nodal points strictly on high-symmetry lines in the Brillouin zone. Here, we use a combined numerical and group-theoretical approach in real space to characterize the unconventional superconducting state in monolayer transition metal dichalcogenides. Even with a conventional pairing interaction, the superconducting state is intrinsically parity mixed and robust against onsite disorder. The interplay between the Zeeman magnetic field, strong spin-orbit interaction, and electronic orbital content confer the unique superconducting and topological properties. The discussion also extends to strongly hole-doped MoS2 and its relatives.
【 授权许可】
Free