Hybridization and interference effects for localized superconducting states in strong magnetic field

Localized states in a strong magnetic field: Resonant scattering and the Dicke effect

We study the energy spectrum of a system of localized states coupled to a two-dimensional electron gas in a strong magnetic field. If the energy levels of localized states are close to the electron energy in the plane, the system exhibits a kind of collective behavior analogous to the Dicke effect in optics. The latter manifests itself in a ‘‘trapping’’ of electronic states by localized states....

Localized states in strong magnetic field: resonant scattering and the Dicke effect

We study the energy spectrum of a system of localized states coupled to a 2D electron gas in strong magnetic field. If the energy levels of localized states are close to the electron energy in the plane, the system exhibits a kind of collective behavior analogous to the Dicke effect in optics. The latter manifests itself in “trapping” of electronic states by localized states. At the same time, ...

Magnetoresistance of granular superconducting metals in a strong magnetic field

The magnetoresistance of a granular superconductor in a strong magnetic field is considered. It is assumed that this field destroys the superconducting gap in each grain, such that all interesting effects considered in the paper are due to superconducting fluctuations. The conductance of the system is assumed to be large, which allows us to neglect all localization effects as well as the Coulom...

Superconducting properties of vacuum in strong magnetic field

Critical currents in superconducting networks and magnetic field effects

2014 Network equations for finite and extended superconducting arrays are studied in the presence of external currents. Critical currents are obtained for typical network geometries. In the presence of a magnetic field, the critical currents are shown to be very sensitive to the underlying topology of the network. This is illustrated through explicit calculations on an extended square network. ...