Superflow in d-wave superconductors

Abstract

Superflow in a phenomenological tight-binding model for the superconducting state of some High-temperature superconductors is discussed thoroughly. The formalism used is explicitly gauge-invariant and currents are computed exactly within BCS theory, going therefore beyond linear response theory. The dependence of gap functions, current density, critical currents, and free energy as a function of superfluid velocity for different angles and doping concentrations is investigated. Different sources of anisotropy, like the dispersion relation of the model, the internal symmetry of the order parameter, and orthorhombic distortions of the lattice are also studied.

10 pages, 8 eps figures included

References in corpus (8)

• Phenomenological Models for the Gap Anisotropy of Bi-2212 as Measured by ARPES
• C-axis Josephson Tunneling Between YBCO and Pb: Direct Evidence for Mixed Order Parameter Symmetry in a High-T_c Superconductor
• Microscopic Derivation of the Ginzburg-Landau Equations for a d-wave Superconductor
• Hole Doping Evolution of the Quasiparticle Band in Models of Strongly Correlated Electrons for the High-T_c Cuprates
• Self-consistent scattering description of transport in normal-superconductor structures
• Self-consistent current-voltage characteristics of superconducting nano-structures
• Induction of non-d-wave order-parameter components by currents in d-wave superconductors
• s-s*-d-wave superconductor on a square lattice and its BCs phase diagram

Cited by in corpus (5)

• Free Energy and Magnetic Penetration Depth of a $d$-Wave Superconductor in the Meissner State
• Josephson and spontaneous currents at the interface between two d-wave superconductors with transport current in the banks
• Imaging the paramagnetic nonlinear Meissner effect in nodal gap superconductor
• Non-Linear and Non-Local Meissner Effect in Superconducting Wires
• Impact of the transport supercurrent on the density of states in the weak link