Quantum critical behavior in disordered itinerant ferromagnets: Logarithmic corrections to scaling
Abstract
The quantum critical behavior of disordered itinerant ferromagnets is determined exactly by solving a recently developed effective field theory. It is shown that there are logarithmic corrections to a previous calculation of the critical behavior, and that the exact critical behavior coincides with that found earlier for a phase transition of undetermined nature in disordered interacting electron systems. This confirms a previous suggestion that the unspecified transition should be identified with the ferromagnetic transition. The behavior of the conductivity, the tunneling density of states, and the phase and quasiparticle relaxation rates across the ferromagnetic transition is also calculated.
Keywords
Cite
@article{arxiv.cond-mat/0010377,
title = {Quantum critical behavior in disordered itinerant ferromagnets: Logarithmic corrections to scaling},
author = {D. Belitz and T. R. Kirkpatrick and Maria Teresa Mercaldo and Sharon L. Sessions},
journal= {arXiv preprint arXiv:cond-mat/0010377},
year = {2009}
}
Comments
15pp., REVTeX, 8 eps figs, final version as published