Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1999-11-23
Extended abstracts of Electron Transport in Mesoscopic Systems, pp. 120-121 (1999)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
2 pages including 3 figures. Extended abstract for "Electron Transport in Mesoscopic Systems", 12-15 August 1999, Gotenburg, S
Scientific paper
An inherent difficulty in studying mesoscopic effects in semiconductor--superconductor hybrid structures is the large Schottky barrier which often forms at the interface. A large technological effort has been invested in in improving the contact between the superconductor and the two-dimensional electron gas (2DEG) of a semiconductor heterostructure, and in recent years this has become possible for e.g. GaAs-Al, GaAs-In, and InAs-Nb junctions. This development motivates quantitative theoretical modeling of sample-specific transport properties. The aim of our work is to model the conducting properties of a ballistic 2DEG-S interfaces with a QPC in the normal region and also to take into account scattering due to a weak Schottky barrier and/or non-matching Fermi properties of the semiconductor and superconductor.
Flensberg Karsten
Jauho Antti-Pekka
Mortensen Niels Asger
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