Proximity-induced superconductivity in Landau-quantized graphene monolayers

Symmetry-Breaking Supercollisions in Landau-Quantized Graphene.

Recent pump-probe experiments performed on graphene in a perpendicular magnetic field have revealed carrier relaxation times ranging from picoseconds to nanoseconds depending on the quality of the sample. To explain this surprising behavior, we propose a novel symmetry-breaking defect-assisted relaxation channel. This enables scattering of electrons with single out-of-plane phonons, which drast...

Proximity-induced superconductivity in DNA.

Conductivity measurements on double-stranded DNA molecules deposited by a combing process across a submicron slit between rhenium/carbon metallic contacts reveal conduction to be ohmic between room temperature and 1 kelvin. The resistance per molecule is less than 100 kilohm and varies weakly with temperature. Below the superconducting transition temperature (1 kelvin) of the contacts, proximit...

Superconductivity: Ginzburg-Landau Theory

Proximity induced superconductivity in indium gallium arsenide quantum wells

Centre for Advanced Photonics and Electronics (CAPE), Electrical Engineering Division, University of Cambridge, Cambridge CB3 0FA, UK Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, UK Department of Electronic and Electrical Engineering, University of Shef...

Interaction effects on proximity-induced superconductivity in semiconducting nanowires

We investigate the effect of electron-electron interactions on proximity-induced s-wave superconductivity in one-dimensional nanowires. We treat the interactions on a self-consistent mean-field level, and find an analytic expression for the effective pairing potential in the presence of interactions, valid for a weakly tunnel coupled wire. We show that for a set of two nanowires placed in paral...