Weak localization in ferromagnets with spin-orbit interaction
Abstract
Weak localization corrections to conductivity of ferromagnetic systems are studied theoretically in the case when spin-orbit interaction plays a significant role. Two cases are analyzed in detail: (i) the case when the spin-orbit interaction is due to scattering from impurities, and (ii) the case when the spin-orbit interaction results from reduced dimensionality of the system and is of the Bychkov-Rashba type. Results of the analysis show that the localization corrections to conductivity of ferromagnetic metals lead to a negative magnetoresistance -- also in the presence of the spin-orbit scattering. Positive magnetoresistance due to weak antilocalization, typical of nonmagnetic systems, does not occur in ferromagnetic systems. In the case of two-dimensional ferromagnets, the quantum corrections depend on the magnetization orientation with respect to the plane of the system.
Keywords
Cite
@article{arxiv.cond-mat/0101260,
title = {Weak localization in ferromagnets with spin-orbit interaction},
author = {V. K. Dugaev and P. Bruno and J. Barnas},
journal= {arXiv preprint arXiv:cond-mat/0101260},
year = {2009}
}
Comments
14 pages with 10 figures, corrected and extended version, Sec.7 added