The magnetic field crossover exponent problem revisited

C. Castellani and G. Kotliar

Physica A: Statistical Mechanics and its Applications, 1990, vol. 167, issue 1, 294-300

Abstract: 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.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:167:y:1990:i:1:p:294-300

DOI: 10.1016/0378-4371(90)90060-6

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