| Numéro |
J. Phys. I France
Volume 3, Numéro 8, August 1993
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|---|---|---|
| Page(s) | 1671 - 1675 | |
| DOI | https://doi.org/10.1051/jp1:1993209 | |
DOI: 10.1051/jp1:1993209
J. Phys. I France 3 (1993) 1671-1675
1 Low Temperature Physics Section, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700 064, India
2 Institute of Physics, Sachivalaya Marg, Bhubaneswar 751 005, India
© Les Editions de Physique 1993
J. Phys. I France 3 (1993) 1671-1675
Distribution of conductance and its universal fluctuations in 1-D disordered, mesoscopic systems
A. K. Gupta1, A. M. Jayannavar2 and A. K. Sen11 Low Temperature Physics Section, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700 064, India
2 Institute of Physics, Sachivalaya Marg, Bhubaneswar 751 005, India
(Received 10 March 1993, revised 19 April 1993, accepted 18 May 1993)
Abstract
The evolution with length of the probability distribution for the two-probe conductance (
g2) of a disordered one-dimensional system is obtained numerically. It evolves from a strongly peaked distribution close to
g2=1 in the small length limit towards another strongly peaked distribution near
g2=0 in the large length limit. In the middle it goes through a quasi-diffusive regime where the distribution is nearly uniform.
This is consistent with a universal conductance fluctuation of magnitude
0.3 e
2/h (as observed in a recent paper) occurs in such a domain.
© Les Editions de Physique 1993