Does a magnetic field modify the critical behaviour at the metal-insulator transition in 3-dimensional disordered systems?

Preprint

12 August 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9408040

Abstract

The critical behaviour of 3-dimensional disordered systems with magnetic field is investigated by analyzing the spectral fluctuations of the energy spectrum. We show that in the thermodynamic limit we have two different regimes, one for the metallic side and one for the insulating side with different level statistics. The third statistics which occurs only exactly at the critical point is {\it independent} of the magnetic field. The critical behaviour which is determined by the symmetry of the system {\it at} the critical point should therefore be independent of the magnetic field.

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All Related Versions

Version 1, 1994-08-12, ArXiv
Published version: Physical Review Letters, 73 (23), 3137.

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