Vortex-like current states in Josephson ballistic point contacts
arXiv:cond-mat/0512057 · doi:10.1007/BF02769582
Abstract
The stationary Josephson effect is studied theoretically in the situation when there is externally injected transport supercurrent which flows in the banks parallel to the contact interface. Coexistence of this supercurrent with the order parameter phase difference between the banks of the contact results in the appearance of quasiparticles in the weak link, which create the current, localized in the vicinity of the contact and counter-flowing to the transport supercurrent. We review the results of our previous study of weak links between current-carrying conventional and unconventional (d-wave) superconductors. And further we study the weak link in the form of double point contact between current-carrying superconductors. The current distribution patterns, containing the vortex-like states, are obtained.
References in corpus (7)
- Degenerate ground state in a mesoscopic YBaCuO grain boundary Josephson junction
- Mechanisms of Spontaneous Current Generation in an Inhomogeneous d-Wave Superconductor
- Mesoscopic multiterminal Josephson structures: I. Effects of nonlocal weak coupling
- d+is vs d+id' Time Reversal Symmetry Breaking States in Finite Size Systems
- Josephson and spontaneous currents at the interface between two d-wave superconductors with transport current in the banks
- Nonlocal mixing of supercurrents in Josephson ballistic point contact
- Impact of the transport supercurrent on the Josephson effect