Josephson currents in point contacts between dirty two-band superconductors
arXiv:1005.3415 · doi:10.1063/1.3518605
Abstract
We developed microscopic theory of Josephson effect in point contacts between dirty two-band superconductors. The general expression for the Josephson current, which is valid for arbitrary temperatures, is obtained. This expression was used for calculation of current-phase relations and temperature dependences of critical current with application to MgB2 superconductor. Also we have considered influence on contact characteristics interband scattering effect appeared in case of dirty superconductors. It is shown that the correction to Josephson current due to the interband scattering depends on phase shift in the banks (i.e. s- or s+/- -wave symmetry of order parameters)
11 pages, 3 figures Submitted to Low. Temp. Phys
References in corpus (4)
- Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
- Integer and half-integer flux-quantum transitions in a niobium/iron-pnictide loop
- Theory of heterotic SIS Josephson junctions between single- and multi-gap superconductors
- Phase textures induced by dc current pairbreaking in multilayer structures and two-gap superconductors
Cited by in corpus (10)
- Designing phase-sensitive tests for Fe-based superconductors
- Proximity and Josephson effects in microstructures based on multiband superconductors
- Supercurrent rectification with time-reversal symmetry broken multiband superconductors
- Multiple-q current states in a multicomponent superconducting channel
- Josephson current and density of states in proximity circuits with s+- superconductors
- Quantum Waveguide Theory of the Josephson effect in Multiband Superconductors
- Quasiclassical circuit-theory of contiguous disordered multiband superconductors
- Josephsonic diagnostic of competing orders in quantum critical multiband superconductors
- Collective excitations in two-band superconductors
- Control of the effective value of the critical current of the RF SQUID by the high-frequency electromagnetic field