Unconventional superconductivity and anomalous response in hole-doped transition metal dichalcogenides

Abstract

Two-dimensional transition metal dichalcogenides entwine interaction, spin-orbit coupling, and topology. Hole-doped systems lack spin degeneracy: states are indexed with spin and valley specificity. This unique structure offers new possibilities for correlated phases and phenomena. We realize an unconventional superconducting pairing phase which is an equal mixture of a spin singlet and the $m=0$ spin triplet. It is stable against large in-plane magnetic fields, and its topology allows quasiparticle excitations of net nonzero Berry curvature via pair-breaking circularly polarized light.

arXiv comment8 pages, 3 figures

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Cited by in corpus (16)

• Spin-orbit coupling induced valley Hall effects in transition-metal dichalcogenides
• Robust parity-mixed superconductivity in disordered monolayer transition metal dichalcogenides
• Enhancement of the upper critical field in disordered transition metal dichalcogenide monolayers
• Crystalline Nodal Topological Superconductivity and Bogolyubov Fermi Surfaces in Monolayer NbSe${}_2$
• Ising superconductors: Interplay of magnetic field, triplet channels, and disorder
• s+if pairing in Ising superconductors
• Weak-Coupling Theory of Pair Density-Wave Instabilities in Transition Metal Dichalcogenides
• A DMRG study: Pair-density wave in spin-valley locked systems
• Magnetism-driven unconventional effects in Ising superconductors: role of proximity, tunneling, and nematicity
• Theory of superconductivity in hole-doped monolayer MoS${}_2$
• Signatures of triplet correlations in density of states of Ising superconductors
• Engineering nodal topological phases in Ising superconductors by magnetic superstructures
• Ising superconductivity: a first-principles perspective
• Time-reversal symmetry breaking superconductivity in hole-doped monolayer MoS${}_2$
• Interplay of magnetic field and magnetic impurities in Ising superconductors
• Josephson junctions of topological nodal superconductors