ACTIVATED TRANSPORT IN MAGNETIC-FIELD-INDUCED INSULATING PHASE IN 2-DIMENSIONAL ELECTRON-GAS IN INGAAS INP HETEROSTRUCTURES/

Authors
PODOR B GOMBOS G REMENYI G KOVACS G SAVELEV IG NOVIKOV SV
Citation
B. Podor et al., ACTIVATED TRANSPORT IN MAGNETIC-FIELD-INDUCED INSULATING PHASE IN 2-DIMENSIONAL ELECTRON-GAS IN INGAAS INP HETEROSTRUCTURES/, Acta Physica Polonica. A, 92(5), 1997, pp. 945-949
Citations number
10
Journal title
Acta Physica Polonica. A → ACNP
ISSN journal
05874246
Volume
92
Issue
5
Year of publication
1997
Pages
945 - 949
Database
ISI
SICI code
0587-4246(1997)92:5<945:ATIMIP>2.0.ZU;2-4
Abstract
We report on experiments on low temperature (millikelvin range) activa ted magnetotransport on low-density two-dimensional electron systems i n InGaAs/InP for Landau level filling factors 0.25 less than or equal to nu less than or equal to 0.55. The activation energy increases appr oximately linearly with decreasing filling factor. The observations ar e discussed in the light of the formation of the Wigner solid. PACS nu mbers: 73.20.Dx.