Universal behaviour in the floating up of quantum Hall extended states as B -> 0
| dc.creator | Yasin, C. E. | |
| dc.creator | Simmons, M. Y. | |
| dc.creator | Hamilton, A. R. | |
| dc.creator | Lumpkin, N. E. | |
| dc.creator | Clark, R. G. | |
| dc.creator | Pfeiffer, L. N. | |
| dc.creator | West, K. W. | |
| dc.date | 2002-04-24 | |
| dc.date | 2002-06-13 | |
| dc.date.accessioned | 2026-07-07T02:45:11Z | |
| dc.date.available | 2026-07-07T02:45:11Z | |
| dc.description | We investigate the relationship between the quantum Hall extended states and the apparent B=0 `metal'-insulator transition in extremely low density, high quality two-dimensional n-GaAs systems (μ_{peak} ~ 2 x 10^7 cm^2/Vs). The combination of small effective mass and high quality allow us to resolve the continued floating up in energy of the extended states down to very low magnetic fields, B=0.015T, despite an apparent `metal'-insulator transition at B = 0. We present a modified global phase diagram which brings together conflicting data in the literature from different material systems, and reconciles the differences as to the fate of the extended states as B -> 0. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0204519 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0204519 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/19211 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Universal behaviour in the floating up of quantum Hall extended states as B -> 0 | |
| dc.type | text |