The magnetic field crossover exponent problem revisited

The magnetic field crossover problem is reexamined in the context of the nonlinear σ model for non-interacting electrons in a disordered system. By using a Wilson-Polyakov renormalization group, the orbital magnetic field crossover exponent is found to agree to lowest order with the exponent expected from naive scaling arguments. It is also argued that this result is in fact valid to all orders.

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Year of publication:	1990
Authors:	Castellani, C. ; Kotliar, G.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 167.1990, 1, p. 294-300
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011057936