Dynamical vortex phase diagram of two-dimensional superconductivity in gated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Mo</mml:mi><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
Yu Saito, Yuki M. Itahashi, Tsutomu Nojima, Yoshihiro Iwasa
Abstract
2D superconductors exhibit novel aspects which are distinct from those of the 3D counterparts. Vortex matter is one of them. Here, the authors report a dynamical vortex phase diagram at zero magnetic field for ion-gated MoS${}_{2}$. They find that superconductivity is destroyed by current through the dissociation of vortex-antivortex pairs with multiple steps. They are accounted for by the kinematic vortex flow states, including phase slip line formation. Based on the present result, the authors present a comprehensive vortex phase diagram for clean 2D superconductors.
Topics & Concepts
VortexPhase diagramSuperconductivityCondensed matter physicsPhysicsMagnetic fieldTourbillonDissociation (chemistry)Type-II superconductorMaterials sciencePhase (matter)KinematicsDiagramLine (geometry)InstabilityQuantum vortexFlow (mathematics)Pinning forceField (mathematics)High-temperature superconductivitySlip (aerodynamics)Physics of Superconductivity and Magnetism2D Materials and ApplicationsOrganic and Molecular Conductors Research