Type-II Ising superconductivity in two-dimensional materials with strong spin-orbit coupling

Abstract

Recent discovery of Ising superconductivity protected against in-plane magnetic field by spin-orbit coupling (SOC) has stimulated intensive research interests. The effect, however, was only expected to appear in two-dimensional (2D) noncentrosymmetric materials with spin-valley locking. In this work, we proposed a new type of Ising superconductivity in 2D materials with $C_{nz}$ rotational symmetry ($n=3,4,6$). This mechanism, dubbed as type-II Ising superconductivity, is applicable for centrosymmetric materials. Type-II Ising superconductivity relies on the SOC-induced spin-orbital locking characterized by Ising-type Zeeman-like fields displaying opposite signs for opposing orbitals. We found that type-II Ising superconductivity are most prominent around time-reversal invariant momenta and is not sensitive to inversion symmetry breaking. By performing high-throughput first-principles calculations, about one hundred candidate materials were identified. Our work significantly enriches the physics and materials of Ising superconductor, opening new opportunities for fundamental research and practical applications of 2D materials.

References in corpus (38)

• Topological Insulators
• Topological insulators and superconductors
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• New Perspectives for Rashba Spin-Orbit Coupling
• Two-dimensional materials from high-throughput computational exfoliation of experimentally known compounds
• Epitaxial Growth of Two-Dimensional Stanene
• Large-gap quantum spin Hall insulators in tin films
• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• Evidence of Ising pairing in superconducting NbSe${}_2$ atomic layers
• Superconducting 2D system with lifted spin degeneracy: Mixed singlet-triplet state
• Two Dimensional Ising Superconductivity in Gated MoS${}_2$
• Non-ballistic spin field-effect transistor
• Superconductivity protected by spin-valley locking in ion-gated MoS2
• Highly crystalline 2D superconductors
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Valley contrasting chiral phonons in monolayer hexagonal lattices
• Tuning Ising superconductivity with layer and spin-orbit coupling in two-dimensional transition-metal dichalcogenides
• Electrically Tunable Low Density Superconductivity in a Monolayer Topological Insulator
• Thermal conductivity of monolayer MoS2, MoSe2, and WS2: Interplay of mass effect, interatomic bonding and anharmonicity
• Ballistic transport exceeding 28 μm in CVD grown graphene
• Unexpected phonon-transport properties of stanene among 2D group-IV materials from \textit{ab initio}
• Superconductivity in Few-Layer Stanene
• Low lattice thermal conductivity of stanene
• The key ingredients of the electronic structure of FeSe
• 2D superconductivity with strong spin-orbit interaction
• Ising Superconductivity and Majorana Fermions in Transition Metal Dichalcogenides
• Persistent Spin Textures in Semiconductor Nanostructures
• Parity-breaking phases of spin-orbit-coupled metals with gyrotropic, ferroelectric and multipolar orders
• A full superconducting dome of strong Ising protection in gated monolayer WS2
• Pseudospins and topological effects of phonons in a Kekule lattice
• Spin-orbital Texture in Topological Insulators
• Ubiquitous strong electron phonon coupling at the interface of FeSe/SrTiO3
• Distinguishing spin-orbit coupling and nematic order in the electronic spectrum of iron-based superconductors
• Interface induced Zeeman-protected superconductivity in ultrathin crystalline lead films
• Prominent role of spin-orbit coupling in FeSe
• Influence of Spin Orbit Coupling in the Iron-Based Superconductors

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• Microscopic theory of in-plane critical field in two-dimensional Ising superconducting systems
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• Holstein polarons, Rashba-like spin splitting and Ising superconductivity in electron-doped MoSe2
• Two-Fold Anisotropic Superconductivity in Bilayer T${}_d$-MoTe${}_2$
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