DIRECT CALCULATION OF THE NONEQUILIBRIUM CURRENT BY A RECURSIVE METHOD

Authors
NONOYAMA S OGURI A
Citation
S. Nonoyama et A. Oguri, DIRECT CALCULATION OF THE NONEQUILIBRIUM CURRENT BY A RECURSIVE METHOD, Physical review. B, Condensed matter, 57(15), 1998, pp. 8797-8800
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
15
Year of publication
1998
Pages
8797 - 8800
Database
ISI
SICI code
0163-1829(1998)57:15<8797:DCOTNC>2.0.ZU;2-6
Abstract
The spatial distribution of the nonequilibrium current in a series of two point contacts under a finite bias voltage is investigated numeric ally making use of a recursive Green-function method based on the Keld ysh formalism. The results of the current distribution show an interes ting behavior such as the existence of vortices in between the two bar riers. The temperature dependence of the nonlinear current-voltage cha racteristic is also studied. [S0163-1829(98)02216-4].