Abstract
We report results of a numerical study of noninteracting electrons moving in two dimensions, in the presence of a random potential and a random magnetic field for a sequence of finite sizes, using topological properties of the wave functions to identify extended states. Our results are consistent with the existence of a second order localization-delocalization transition driven by the random potential. The critical randomness strength and localization length exponent are estimated via a finite-size scaling analysis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | R1922-R1925 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 55 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1997 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics