Orbital Fulde-Ferrell-Larkin-Ovchinnikov state in 2H-NbS2 flakes
arXiv:2411.08980 · doi:10.1103/m871-4mbq
Abstract
Symmetry breaking in a layered superconductor with Ising spin-orbit coupling has offered an opportunity to realize unconventional superconductivity. To be more specific, orbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, exhibiting layer-dependent finite-momentum pairing, may emerge in transition metal dichalcogenides materials (TMDC) in the presence of an in-plane magnetic field. Orbital FFLO state can be more robust against the magnetic field than the conventional superconducting state with zero-momentum pairing. This feature renders its potential in field-resilient superconducting functionality. Although, orbital FFLO state has been reported in NbSe2 and MoS2, it is not yet clear if orbital FFLO state can be extended to other TMDC superconductor. Here, we report the observation of orbital FFLO state in 2H-NbS2 flakes and its dependence on the thickness of flake. We conclude that the relatively weak interlayer coupling is instrumental in stabilizing orbital FFLO state at higher temperature with respect to the critical temperature and lower magnetic field with respect to paramagnetic limit in NbS2 in comparison to its NbSe2 counterpart.
References in corpus (29)
- Evidence of Ising pairing in superconducting NbSe atomic layers
- Two Dimensional Ising Superconductivity in Gated MoS
- Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in CeCoIn5
- Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
- Tuning Ising superconductivity with layer and spin-orbit coupling in two-dimensional transition-metal dichalcogenides
- Supercurrent diode effect and finite momentum superconductivity
- Supercurrent diode effect and magnetochiral anisotropy in few-layer NbSe
- Ubiquitous Superconducting Diode Effect in Superconductor Thin Films
- Inhomogeneous LOFF phase revisited for surface superconductivity
- Magnetic Field Driven Nodal Topological Superconductivity in Monolayer Transition Metal Dichalcogenides
- Spin-Polarized Electrons in Monolayer MoS
- Evidence for an FFLO state with segmented vortices in the BCS-BEC-crossover superconductor FeSe
- Orbital Fulde-Ferrell-Larkin-Ovchinnikov state in an Ising superconductor
- Unconventional superconductivity in bilayer transition metal dichalcogenides
- Evolution of superconductivity in ultrathin NbS2
- Topological metals and finite-momentum superconductors
- Enhanced Superconducting Diode Effect due to coexisting Phases
- Fulde-Ferrell-Larkin-Ovchinnikov Phases in Two-dimensional Spin-Orbit Coupled Degenerate Fermi Gases
- Parallel magnetic field suppresses dissipation in superconducting nanostrips
- Orbital Fulde-Ferrell pairing state in moiré Ising superconductors
- Quantum FFLO state in clean layered superconductors
- Weyl nodal line induced pairing in Ising superconductor and high critical field
- Competition between orbital effects, Pauli limiting, and Fulde-Ferrell-Larkin-Ovchinnikov states in 2D transition metal dichalcogenide superconductors
- Protection of Ising spin-orbit coupling in bulk misfit superconductors
- Josephson Effect in NbS van der Waals Junctions
- Signature of Orbital Driven Finite Momentum Pairing in a 3D Ising Superconductor
- From orbital to paramagnetic pair breaking in layered superconductor 2H-NbS
- Nuclear-induced dephasing and signatures of hyperfine effects in isotopically purified C graphene
- Finite-momentum and field-induced pairings in orbital-singlet spin-triplet superconductors