Proximity-induced transport in hybrid mesoscopic normal-superconducting metal structures

Abstract

Using an approach based on quasiclassical Green's functions we present a theoretical study of transport in mesoscopic S/N structures in the diffusive limit. The subgap conductance in S/N structures with barriers (zero bias and finite bias anomalies) are discused. We also analyse the temperature dependence of the conductance variation $\delta S(T)$ for a Andreev interferometer. We show that besides the well know low temperature maximum a second maximum near $T_c$ may appear. We present the results of studies on the Josephson effect in 4 terminal S/N/S contacts and on the possible sign reversal of the Josephson critical current.

8 pages, 5 figures, with added refrences

References in corpus (4)

• Phase coherent transport in hybrid superconducting nanostructures
• Long-Range Coherence in a Mesoscopic Metal near a Superconducting Interface
• Energy Resolved Supercurrent between two superconductors
• Reentrant behavior in the superconducting phase-dependent resistance of a disordered 2-dimensional electron gas

Cited by in corpus (9)

• Quasiclassical Green's function approach to mesoscopic superconductivity
• Josephson current in superconductor-ferromagnet structures with a nonhomogeneous magnetization
• Supercurrent-carrying density of states in diffusive mesoscopic Josephson weak links
• Suppression and enhancement of the critical current in multiterminal S/N/S mesoscopic structures
• Spin-orbit scattering effect on critical current in SFIFS tunnel structures
• Phase coherent electron transport in asymmetric cross-like Andreev interferometers
• Mesoscopic proximity effect probed through superconducting contacts
• Phase-coherent effects in multiterminal superconductor/normal metal mesoscopic structures
• Transport across a normal-superconducting interface: a novel probe of electron-electron interactions in the normal metal