MAGNETORESISTANCE IN A HALF-FILLED LANDAU-LEVEL

Authors
NAGAOSA N FUKUYAMA H
Citation
N. Nagaosa et H. Fukuyama, MAGNETORESISTANCE IN A HALF-FILLED LANDAU-LEVEL, Journal of the Physical Society of Japan, 67(10), 1998, pp. 3353-3355
Citations number
11
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
67
Issue
10
Year of publication
1998
Pages
3353 - 3355
Database
ISI
SICI code
0031-9015(1998)67:10<3353:MIAHL>2.0.ZU;2-R
Abstract
The effects of the magnetic field Delta B = B-B-1/2 applied to the hal f-filled Landau level (nu = 1/2) are studied for the quantum transport in the framework of the composite fermions and Chern-Simons gauge fie ld. The anomalously large positive magneto-resistance and the Delta B- dependent quantum correction to the conductance with lnT dependence. T being the temperature, are explained hy the gauge theory taking into account the particle-hole symmetry at nu = 1/2.