ELECTRICAL-CONDUCTIVITY OF A 2-DIMENSIONAL DISORDERED SYSTEM WITH AN EXPONENTIAL DENSITY-OF-STATES

Authors
GROSU I
Citation
I. Grosu, ELECTRICAL-CONDUCTIVITY OF A 2-DIMENSIONAL DISORDERED SYSTEM WITH AN EXPONENTIAL DENSITY-OF-STATES, Journal of superconductivity, 10(2), 1997, pp. 171-174
Citations number
12
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Journal of superconductivity → ACNP
ISSN journal
08961107
Volume
10
Issue
2
Year of publication
1997
Pages
171 - 174
Database
ISI
SICI code
0896-1107(1997)10:2<171:EOA2DS>2.0.ZU;2-E
Abstract
The electrical conductivity of a two-dimensional disordered system has been calculated taking into consideration an exponential density of s tates. The effect of backscattering has been calculated. For an expone ntial density of states the diffusion pole has been removed. In the om ega-->0 limit we showed that there exists a critical concentration tha t corresponds to the transition point from the metallic to the insulat ing phase.