Theory of Disordered Itinerant Ferromagnets II: Metal-Insulator Transition

Details Theory of Disordered Itinerant Ferromagnets II: Metal-Insulator Transition Theory of Disordered Itinerant Ferromagnets II: Metal-Insulator Transition

1999-12-29

arxiv.org/abs/cond-mat/9912478v2

Phys. Rev. B vol. 62, pp. 966-977 (2000)

Physics

Condensed Matter

Statistical Mechanics

12pp., REVTeX, 1 ps and 2 eps figs, final version as published

Scientific paper

10.1103/PhysRevB.62.966

The theory for disordered itinerant ferromagnets developed in a previous paper is used to construct a simple effective field theory that is capable of describing the quantum phase transition from a ferromagnetic metal to a ferromagnetic insulator. It is shown that this transition is in the same universality class as the one from a paramagnetic metal to a paramagnetic insulator in the presence of an external magnetic field, and that strong corrections to scaling exist in this universality class. The experimental consequences of these results are discussed.

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