| Issue |
Europhys. Lett.
Volume 45, Number 3, February 1999
|
|
|---|---|---|
| Page(s) | 374 - 380 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00174-3 | |
| Published online | 01 September 2002 | |
Highly disordered two-dimensional electron system in a weak magnetic field
1
Institute of Physics, Academy of Sciences of the Czech Republic
Cukrovarnická 10, 162 53 Praha 6, Czech Republic
2
TIS-CG Erlangen - Rathsbergerstr. 41C, 91054 Erlangen, Germany
3
Institute of Electrical Engineering, Slovak Academy of Sciences Dubravská 9,
842 39 Bratislava, Slovakia
Received:
17
July
1998
Accepted:
25
November
1998
The highly disordered two-dimensional electron gas contained in multi-δ-layers was experimentally investigated by a magnetotransport method to obtain information about the nature of electron states in the range of weak magnetic fields. The data observed have been found to be in conflict with the widely accepted floating of the extended states at vanishing magnetic fields and we have suggested an alternative interpretation of the data as a direct transition from an integral quantum Hall liquid to a two-dimensional disordered conductor with the transport controlled by weakly localized states.
PACS: 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers) / 73.20.Fz – Weak or Anderson localization / 73.20.Jc – Delocalization processes
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.