Unconventional superconductivity in bilayer transition metal dichalcogenides

Abstract

Bilayer transition metal dichalcogenides (TMDs) belong to a class of materials with two unique features, the coupled spin-valley-layer degrees of freedom and the crystal structure that is globally centrosymmetric but locally non-centrosymmetric. In this work, we will show that the combination of these two features can lead to a rich phase diagram for unconventional superconductivity, including intra-layer and inter-layer singlet pairings and inter-layer triplet pairings, in bilayer superconducting TMDs. In particular, we predict that the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov state can exist in bilayer TMDs under an in-plane magnetic field. We also discuss the experimental relevance of our results and possible experimental signatures.

arXiv comment19 pages, 4 figures, Appendix is included, a missing fourth order term in the Landau free energy in the previous version of the manuscript is added

References in corpus (33)

• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Evidence of Ising pairing in superconducting NbSe${}_2$ atomic layers
• Two Dimensional Ising Superconductivity in Gated MoS${}_2$
• Odd-Parity Topological Superconductors: Theory and Application to Cu${}_x$Bi${}_2$Se${}_3$
• Superconductivty without inversion symmetry: MnSi versus CePt_3Si
• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Superconductivity protected by spin-valley locking in ion-gated MoS2
• Hidden spin polarization in inversion-symmetric bulk crystals
• Enhanced superconductivity in atomically thin TaS2
• Spin-Layer Locking Effects in Optical Orientation of Exciton Spin in Bilayer WSe2
• Direct observation of spin-polarised bulk bands in an inversion-symmetric semiconductor
• Helical vortex phase in the non-centrosymmetric CePt_3Si
• Odd-parity topological superconductor with nematic order: Application to CuxBi2Se3
• Superconductivity and Ferromagnetism in Oxide Interface Structures: Possibility of Finite Momentum Pairing
• Topological superconductivity in bilayer Rashba system
• Theoretical aspects of Andreev spectroscopy and tunneling spectroscopy in non-centrosymmetric superconductors: a topical review
• Ising Superconductivity and Majorana Fermions in Transition Metal Dichalcogenides
• Possible Topological Superconducting Phases of MoS${}_2$
• Pair Density Wave in the Pseudogap State of High Temperature Superconductors
• Theory of 2D superconductor with broken inversion symmetry
• Inhomogeneous LOFF phase revisited for surface superconductivity
• Magnetic properties of superconductors with strong spin-orbit coupling
• Pair-density wave states through spin-orbit coupling in multilayer superconductors
• Superconductivity and local non-centrosymmetricity in crystal lattices
• Possible pairing symmetries in SrPtAs with a local lack of inversion center
• Phase diagram of a surface superconductor in parallel magnetic field
• Pair-Density-Wave Superconducting States and Electronic Liquid Crystal Phases
• New superconducting phases in field-induced organic superconductor lambda-(BETS)2FeCl4
• Josephson Effect in Fulde-Ferrell-Larkin-Ovchinnikov Superconductors
• Complex-Stripe Phases Induced by Staggered Rashba Spin-Orbit Coupling
• Electrically tunable multiple Dirac cones in thin films of (LaO)2(SbSe2)2 family of materials
• Model for magnetic flux pattern induced by in-plane magnetic fields on spatially inhomogeneous superconducting interfaces of LaAlO_3-SrTiO_3
• Topological exciton condensate of imbalanced electrons and holes

Cited by in corpus (47)

• Tuning Ising superconductivity with layer and spin-orbit coupling in two-dimensional transition-metal dichalcogenides
• An unusual continuous paramagnetic-limited superconducting phase transition in 2D NbSe${}_2$
• Clean 2D superconductivity in a bulk van der Waals superlattice
• Transport evidence of asymmetric spin-orbit coupling in few$-$layer superconducting 1Td$-$MoTe${}_2$
• Orbital Fulde-Ferrell-Larkin-Ovchinnikov state in an Ising superconductor
• Uncovering and tailoring hidden Rashba spin-orbit splitting in centrosymmetric crystals
• Spin-orbit coupling induced valley Hall effects in transition-metal dichalcogenides
• Robust parity-mixed superconductivity in disordered monolayer transition metal dichalcogenides
• Crossover from 2D metal to 3D Dirac semimetal in metallic PtTe2 films with local Rashba effect
• Enhancement of the upper critical field in disordered transition metal dichalcogenide monolayers
• Crystalline Nodal Topological Superconductivity and Bogolyubov Fermi Surfaces in Monolayer NbSe${}_2$
• Odd-parity superconductivity in bilayer transition metal dichalcogenides
• Metal-chalcogen bond-length induced electronic phase transition from semiconductor to topological semimetal in ZrX${}_2$ (X = Se and Te)
• Magnetoanisotropic spin-triplet Andreev reflection in ferromagnet-Ising superconductor junctions
• Orbital Fulde-Ferrell pairing state in moiré Ising superconductors
• The soft-mode phonons mediated unconventional superconductivity in monolayer 1T'-WTe2
• Pair Density Waves and Supercurrent Diode Effect in Altermagnets
• Engineering nodal topological phases in Ising superconductors by magnetic superstructures
• Electrically switchable hidden spin polarization in antiferroelectric crystals
• Superconducting Diode Effect in Multiphase Superconductors
• Topological Larkin-Ovchinnikov phase and Majorana zero mode chain in bilayer superconducting topological insulator films
• Orbital effect on intrinsic superconducting diode effect
• Topological Ising pairing states in monolayer and trilayer TaS${}_2$
• Ultrafast Hidden Spin Polarization Dynamics of Bright and Dark Excitons in 2H-WSe${}_2$
• Spin texture in a bilayer high-temperature cuprate superconductor
• Kramers nodal lines in intercalated TaS${}_2$ superconductors
• Signature of Orbital Driven Finite Momentum Pairing in a 3D Ising Superconductor
• Superconductivity in Two-Dimensional Systems with Unconventional Rashba Bands
• Microscopic model for the hidden Rashba effect in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Inhomogeneous superconducting states in two weakly linked superconducting ultra thin films
• First-principles study on the electrical resistivity in zirconium dichalcogenides with multi-valley bands: mode-resolved analysis of electron-phonon scattering
• Multiphase superconductivity in PdBi2
• Superfluid response of an atomically thin, gate-tuned van der Waals superconductor
• Nonlinear optical responses in multi-orbital topological superconductors
• Hidden Zeeman-type spin polarization in bulk crystals
• Bardasis-Schrieffer-like phase mode in a superconducting bilayer
• Influence of different exchange-correlation potentials on twisted structures of bilayer XS2 (X= Mo, Cr)
• Spin-orbit-coupled superconductivity with spin-singlet non-unitary pairing
• Topological Interlayer Superconductivity in a van der Waals Heterostructure
• Stacking sensitive topological phases in a bilayer Kane-Mele-Hubbard model at quarter filling
• Charge Density Waves in the 2.5-Dimensional Quantum Heterostructure
• Orbital Fulde-Ferrell-Larkin-Ovchinnikov state in 2H-NbS2 flakes
• In-plane magnetic field-induced orbital FFLO superconductivity in twisted WSe${}_2$ homobilayers
• Structural, elastic, bonding, optoelectronic, and some thermo-physical properties of transition metal dichalcogenides ZrX2 (X = S, Se, Te): Insights from ab-initio calculations
• Charge Density Waves beyond the Pauli paramagnetic limit in 2D systems
• Intrinsic Mechanism for Magneto-Thermal Conductivity Oscillations in Spin-Orbit-Coupled Nodal Superconductors
• Pair-mixing induced Time-reversal-breaking superconductivity