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Quantum Transport in a Superconductor–Semiconductor Mesoscopic System
Author(s) -
Aly A.H.,
Phillips A.H.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200208)232:2<283::aid-pssb283>3.0.co;2-g
Subject(s) - mesoscopic physics , quantum tunnelling , wkb approximation , andreev reflection , condensed matter physics , physics , electron , schottky barrier , superconductivity , monte carlo method , quantum , statistical physics , quantum mechanics , mathematics , statistics , diode
The quantum transport characteristics of a mesoscopic system are studied. Using the WKB method the current density was derived due to both, normal tunneling and Andreev reflection processes. The tunneling process was treated as a stochastic process, therefore, the energies of the tunneled electrons and the value of the Schottky barrier height at the S–Sm interface are determined by using a Monte‐Carlo simulation technique. Numerical calculation of the current has been performed at different temperatures and bias voltage. The obtained results fit nicely with the experimental results in the literature. These results are very important for nanotechnology applications.