OBSERVATION OF CORRELATED V=1 QUANTUM HALL AND INSULATING STATES IN STRONGLY COUPLED P-TYPE DOUBLE-QUANTUM WELLS

Authors
HYNDMAN RJ IHN T GALLAGHER BL RODGERS PJ HENINI M FOSTER TJ MIDDLETON JR
Citation
Rj. Hyndman et al., OBSERVATION OF CORRELATED V=1 QUANTUM HALL AND INSULATING STATES IN STRONGLY COUPLED P-TYPE DOUBLE-QUANTUM WELLS, Surface science, 362(1-3), 1996, pp. 117-121
Citations number
8
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
362
Issue
1-3
Year of publication
1996
Pages
117 - 121
Database
ISI
SICI code
0039-6028(1996)362:1-3<117:OOCVQH>2.0.ZU;2-T
Abstract
We present magnetotransport results for strongly coupled p-type double quantum wells which demonstrate the existence of a correlated nu=1 qu antum Hall state in the limit of weak tunnelling. Our results are in g ood agreement with the finite-temperature phase transition predicted f or this state. We also observe an activated insulating behaviour for n u=1, which may be evidence of a correlated bilayer Wigner state.