Electron-hole coherence in core-shell nanowires with partial proximity-induced superconductivity

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...

FEW ELECTRON QUANTUM DOTS IN InAs/InP CORE SHELL NANOWIRES

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...

Radial modulation doping in core-shell nanowires.

Semiconductor nanowires are potential candidates for applications in quantum information processing, Josephson junctions and field-effect transistors and provide a unique test bed for low-dimensional physical phenomena. The ability to fabricate nanowire heterostructures with atomically flat, defect-free interfaces enables energy band engineering in both axial and radial directions. The design o...

Thermal conductivity reduction in core-shell nanowires

Ming Hu,1,* Xiaoliang Zhang,1,2 Konstantinos P. Giapis,3,† and Dimos Poulikakos1,‡ 1Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland 2Center for Heat and Mass Transfer, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China 3Division of Chemistry and Chemical Engineer...