Three-dimensional disordered conductors in a strong magnetic field: Surface states and quantum Hall plateaus
Abstract
We study localization in layered, three-dimensional conductors in strong magnetic fields. We demonstrate the existence of three phases-insulator, metal, and quantized Hall conductor-in the two-dimensional parameter space obtained by varying the Fermi energy and the interlayer coupling strength. Transport in the quantized Hall conductor occurs via extended surface states. These surface states constitute a subsystem at a novel critical point, which we describe using a new, directed network model.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 1995
- DOI:
- 10.1103/PhysRevLett.75.4496
- arXiv:
- arXiv:cond-mat/9510164
- Bibcode:
- 1995PhRvL..75.4496C
- Keywords:
-
- 73.40.Hm;
- 71.30.+h;
- 72.15.Rn;
- Metal-insulator transitions and other electronic transitions;
- Localization effects;
- Condensed Matter
- E-Print:
- 4 pages (PostScript) replaced due to compression error, slightly shortened version to appear in PRL