Numéro |
J. Phys. I France
Volume 1, Numéro 7, July 1991
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Page(s) | 985 - 991 | |
DOI | https://doi.org/10.1051/jp1:1991181 |
DOI: 10.1051/jp1:1991181
J. Phys. I France 1 (1991) 985-991
Laboratoire de Physique Statistique 24 rue Lhomond, 75231 Paris Cedex 05, France
© Les Editions de Physique 1991
J. Phys. I France 1 (1991) 985-991
A theory of magnetoconductance in Anderson insulators
J.P. BouchaudLaboratoire de Physique Statistique 24 rue Lhomond, 75231 Paris Cedex 05, France
(Received 3 April 1991, accepted 26 April 1991)
Abstract
We present a simple theory to understand the effect of magnetic field on the localisation length
in Anderson insulators. For thin wires, we find that
is doubled, a result recently derived through random matrix theories. For films or bulk samples, new results are obtained.
In this case, the localisation length is multiplied by a non universal factor. We discussquantitatively the full dependence of
on the magnetic field.
© Les Editions de Physique 1991