LOCALIZATION SCALING RELATION IN 2 DIMENSIONS - COMPARISON WITH EXPERIMENT

Authors
VANKEULS FW MATHUR H JIANG HW DAHM AJ
Citation
Fw. Vankeuls et al., LOCALIZATION SCALING RELATION IN 2 DIMENSIONS - COMPARISON WITH EXPERIMENT, Physical review. B, Condensed matter, 56(20), 1997, pp. 13263-13267
Citations number
30
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
20
Year of publication
1997
Pages
13263 - 13267
Database
ISI
SICI code
0163-1829(1997)56:20<13263:LSRI2D>2.0.ZU;2-O
Abstract
Transport measurements on gated GaAs/AlxGa1-xAs heterostructures over a wide range of electron densities ties are reported. Experimental obs ervations of the crossover from weak to strong localization are compar ed with theoretical predictions. Agreement is found between localizati on lengths obtained from hopping transport measurements at low density and a scaling theory estimate from the classical Drude conductivity a t high density.