A full superconducting dome of strong Ising protection in gated monolayer WS2

Abstract

Many recent studies show that superconductivity not only exists in atomically thin monolayers but can exhibit enhanced properties such as higher transition temperature and stronger critical field. Nevertheless, besides being air unstable, weak tunability in these intrinsically metallic monolayers has posed a severe limitation in exploring monolayer superconductivity, hence hindering possible applications in electronic devices. Using field effect gating, we prepared monolayer superconductivity in easily accessible CVD-grown WS2, a typical ambient stable semiconducting transition metal dichalcogenide (TMD). Here, we present a complete set of competitive electronic phases over an unprecedented range from band insulator, superconductor, to an unexpected re-entrant insulator. Throughout the superconducting dome, the Cooper pair spin is pinned by a strong internal spin-orbit interaction, making this material arguably the most resilient superconductor in a magnetic field. The re-entrant insulating state at positive high gating voltages is plausibly attributed to localization induced by the characteristically weak screening of the monolayer, providing the key insight into many dome-like superconducting phases observed in field induced quasi-2D superconductors.

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• Multi-Valley Superconductivity In Ion-Gated MoS2 Layers
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• Band filling and cross quantum capacitance in ion gated semiconducting transition metal dichalcogenide monolayers
• Coexistence of Superconductivity and Charge Density Wave in Tantalum Disulfide: Experiment and Theory
• Spin-orbit-parity coupled superconductivity in topological monolayer WTe${}_2$
• 2D superconductivity and vortex dynamics in 1T-MoS2
• Magnetic field-induced "mirage" gap in an Ising superconductor
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• Ionic Gate Spectroscopy of 2D Semiconductors
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• Oxygen Electromigration and Energy Band Reconstruction Induced by Electrolyte Field Effect at Oxide Interfaces
• Intrinsic first and higher-order topological superconductivity in a doped topological insulator
• Orbital Fulde-Ferrell pairing state in moiré Ising superconductors
• Electronic and Optical properties of transition metal dichalcogenides under symmetric and asymmetric field-effect doping
• Chiral Majorana fermions in graphene from proximity-induced superconductivity
• Weyl nodal line induced pairing in Ising superconductor and high critical field
• Topological superconductivity in Dirac honeycomb systems
• Metal-insulator transition in monolayer MoS${}_2$ via contactless chemical doping
• Nonlinear optical study of commensurability effects in graphene-hBN heterostructures
• Towards the insulator-to-metal transition at the surface of ion-gated nanocrystalline diamond films
• Ambipolar suppression of superconductivity by ionic gating in optimally-doped BaFe2(As,P)2 ultrathin films
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• Full control of solid-state electrolytes for electrostatic gating
• Electric field induced permanent superconductivity in layered metal nitride chloride MNCl(M: Hf and Zr)
• Photon drag of superconducting fluctuations in 2D systems
• Ising superconductivity: a first-principles perspective
• Topological Ising pairing states in monolayer and trilayer TaS${}_2$
• Orientation-dependent electric transport and band filling in hole co-doped epitaxial diamond films
• Two-dimensional hole transport in ion-gated diamond surfaces: A brief review
• Gate-controlled proximity effect in superconductor/ferromagnet van der Waals heterostructures
• Controlling charge and spin transport in an Ising-superconductor Josephson junction
• Microscopic theory of in-plane critical field in two-dimensional Ising superconducting systems
• Dominant role of processing temperature in electric field induced superconductivity in layered ZrNBr
• Crossover from Conventional to Unconventional Superconductivity in 2M-WS2
• Competition between phonon mediated superconductivity and carriers localization in field-effect doped molybdenum dichalcogenides
• Tunable critical field in Rashba superconductor thin-films
• Strong band-filling-dependence of the scattering lifetime in gated MoS2 nanolayers induced by the opening of intervalley scattering channels
• Gate-tunable nonlocal Josephson effect through magnetic van der Waals bilayers
• Trapping Interlayer Excitons in van der Waals Heterostructures by Potential Arrays
• Anomalous metallic phase in molybdenum disulphide induced via gate-driven organic ion intercalation
• Topological Interlayer Superconductivity in a van der Waals Heterostructure
• Proximity-induced collective modes in an unconventional superconductor heterostructure
• Ising superconductivity in noncentrosymmetric bulk NbSe2
• Strong pairing in two dimensions: Pseudogaps, domes, and other implications
• Spectral properties of disordered Ising superconductors with singlet and triplet pairing in in-plane magnetic fields
• Spectral properties of a mixed singlet-triplet Ising superconductor
• Reversible Tuning of Superconductivity in Ion-Gated NbN Ultrathin Films by Self-Encapsulation with a High-$\kappa$ Dielectric Layer
• Transient vortex dynamics and evolution of Bose metal from a 2D superconductor on MoS${}_2$
• Observation of surface superconductivity in bulk polycrystalline MoS2 induced by electric double-layer doping
• Nested Fermi surfaces and correlated electronic phases in hole-doped semiconductor quantum wells
• Unconventional superconductivity in monolayer transition metal dichalcogenides
• Dual Universality and Unconventional Phase Diagram of a Clean 2D Superconductor with Tunable Disorders
• Enhanced Backgate Tunability on Interfacial Carrier Concentration in Ionic Liquid-Gated MoS2 Devices
• Josephson junctions of topological nodal superconductors