Abstract
Using a mapping of a layered three-dimensional system with significant interlayer tunneling onto a spin Hamiltonian, the phase diagram in the strong magnetic-field limit is obtained in the semiclassical approximation. This phase diagram, which exhibits a metallic phase for a finite range of energies and magnetic fields, and the calculated associated critical exponent agree excellently with existing numerical calculations. The implication of this work for the quantum Hall effect in three dimensions is discussed.
- Received 19 May 1998
DOI:https://doi.org/10.1103/PhysRevB.58.R1762
©1998 American Physical Society