Collapse of quantized Hall resistance at high Hall electric fields

Authors
Kawaji, S Iizuka, H Kuga, T Okamoto, T
Citation
S. Kawaji et al., Collapse of quantized Hall resistance at high Hall electric fields, PHYSICA B, 258, 1998, pp. 56-59
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
258
Year of publication
1998
Pages
56 - 59
Database
ISI
SICI code
0921-4526(199812)258:<56:COQHRA>2.0.ZU;2-R
Abstract
Collapse of quantized Hall resistance (QHR) - steep deviation of Hall resis tance from the quantized value - at high Hall electric fields has been obse rved in butterfly-type Hall bars made from GaAs/AlGaAs heterostructures. Th e collapse is not caused by breakdown of quantum Hall effect (QHE) - abrupt increase in dissipation in the QHE stale. A phenomeno-logical model for th e collapse of the QHR and the breakdown of the QHE is discussed. (C) 1998 P ublished by Elsevier Science B.V. All rights reserved.