NUMERICAL STUDY ON THE CONDUCTANCE OF NORMAL-SUPERCONDUCTOR CONTACTS

Authors
TAKANE Y EBISAWA H
Citation
Y. Takane et H. Ebisawa, NUMERICAL STUDY ON THE CONDUCTANCE OF NORMAL-SUPERCONDUCTOR CONTACTS, Journal of the Physical Society of Japan, 62(6), 1993, pp. 1844-1847
Citations number
10
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
62
Issue
6
Year of publication
1993
Pages
1844 - 1847
Database
ISI
SICI code
0031-9015(1993)62:6<1844:NSOTCO>2.0.ZU;2-Y
Abstract
Conductance of normal-superconductor contacts with disorder in the nor mal segment is studied numerically using a simple lattice model. When the probability of the Andreev reflection is small, the ensemble-avera ged conductance is shown to be suppressed by a magnetic field. It is a lso found that the conductance is enhanced with an increase of randomn ess in the normal segment in the weak disordered regime. These anomalo us features disappear in the case of complete Andreev reflection.