Supercurrent in superconducting graphene
arXiv:1001.1048 · doi:10.1103/PhysRevB.82.014516
Abstract
The problem of supercurrent in superconducting graphene is revisited and the supercurrent is calculated within the mean-field model employing the two-component wave functions on a honeycomb lattice with pairing between different valleys in the Brillouin zone. We show that the supercurrent within the linear approximation in the order-parameter-phase gradient is always finite even if the doping level is exactly zero.
References in corpus (10)
- The electronic properties of graphene
- Andreev reflection and Klein tunneling in graphene
- Bipolar supercurrent in graphene
- Specular Andreev reflection in graphene
- Room-Temperature Superfluidity in Graphene Bilayers
- Excitation gap of a graphene channel with superconducting boundaries
- Intrinsic Superconductivity at 25 K in Highly Oriented Pyrolytic Graphite
- Magnetic Field Effects on the Superconducting and Quantum Critical Properties of Layered Systems with Dirac Electrons
- Comment on "BCS superconductivity of Dirac fermions in graphene layers"
- A quantum critical superconducting phase transition in quasi-two-dimensional systems with Dirac electrons
Cited by in corpus (19)
- Superfluidity in topologically nontrivial flat bands
- Band geometry, Berry curvature and superfluid weight
- Possibility of superconductivity due to electron-phonon interaction in graphene
- Heuristic bounds on superconductivity and how to exceed them
- Wave packet dynamics of Bogoliubov quasiparticles: quantum metric effects
- Surface superconductivity in multilayered rhombohedral graphene: Supercurrent
- Exposing the quantum geometry of spin-orbit coupled Fermi superfluids
- Type-III Dirac Cones from Degenerate Directionally Flat Bands: Viewpoint from Molecular-Orbital Representation
- Edge magnetoplasmons in graphene: Effects of gate screening and dissipation
- Berezinskii-Kosterlitz-Thouless transition in the time-reversal-symmetric Hofstadter-Hubbard model
- Meissner Effect of Dirac Electrons in Superconducting State due to Inter-band Effect
- Superfluidity of Dirac Fermions in a Tunable Honeycomb Lattice: Cooper Pairing, Collective Modes, and Critical Currents
- Hofstadter-Hubbard model with opposite magnetic fields: Bardeen-Cooper-Schrieffer pairing and superfluidity in the nearly flat butterfly bands
- Flat-band superconductivity in periodically strained graphene: mean-field and Berezinskii-Kosterlitz-Thouless transition
- Anatomy of Spin and Current Generation from Magnetization Gradients in Topological Insulators and Rashba Metals
- Josephson super-current in graphene-superconductor junction
- Gauge-invariant cutoff for Dirac electron systems with a vector potential
- Topological Superfluid Responses of Superconducting Dirac Semimetals
- Superfluid Stiffness and Josephson Quantum Capacitance: Adiabatic Approach and Topological Effects