|
HKUST Institutional Repository >
Physics >
PHYS Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1783.1/1865
|
| Title: | Kosterlitz-Thouless type metal- insulator transition of 2D electron gas in a random magnetic field |
| Authors: | Xie, X. C.
Wang, Xiang-Rong
Liu, D. Z. |
| Keywords: | Two-dimensional electron gas
Random magnetic field
Kosterlitz-Thouless type metal-insulator transition |
| Issue Date: | Apr-1998 |
| Citation: | Physical review letters, v. 80, p. 3563, 1998 |
| Abstract: | We study the localization property of two-dimensional electron gas in the presence of a random magnetic field. The localization length is directly calculated using a transfer matrix technique and finite size scaling analysis. We show strong numerical evidence that the system undergoes a disorder driven Kosterlitz-Thouless type metal-insulator transition. We develop a mean field theory which maps the random field system into a two-dimensional XY model. The vortex and antivortex excitations in the XY model correspond to two different kinds of magnetic domains in the random field system. |
| Rights: | Physical Review Letters © copyright 1998 American Physical Society. The Journal's web site is located at http://prl.aps.org |
| URI: | http://hdl.handle.net/1783.1/1865 |
| Appears in Collections: | PHYS Journal/Magazine Articles
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| article6.pdf | pre-published version | 216Kb | Adobe PDF | View/Open |
|
Find published version via |
All items in this Repository are protected by copyright, with all rights reserved.
|
