Theory of disordered itinerant ferromagnets. II. Metal-insulator transition

Publisher Website
Google Scholar
Abstract
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.