Quantitative Study of Magnetotransport through a (Ga,Mn)As Single Ferromagnetic Domain

TL;DR

This study provides a detailed quantitative validation of magnetotransport theory in a single (Ga,Mn)As ferromagnetic domain, highlighting the role of magneto-impurity scattering in magnetoresistance.

Contribution

It offers a comprehensive experimental and theoretical analysis of magnetoresistance in a single ferromagnetic domain, emphasizing the intrinsic resistivity dependence on magnetic induction.

Findings

Excellent agreement between experiment and theory achieved.

Magneto-impurity scattering identified as key mechanism.

Quantitative validation of magnetotransport models.

Abstract

We have performed a systematic investigation of the longitudinal and transverse magnetoresistance of a single ferromagnetic domain in (Ga,Mn)As. We find that, by taking into account the intrinsic dependence of the resistivity on the magnetic induction, an excellent agreement between experimental results and theoretical expectations is obtained. Our findings provide a detailed and fully quantitative validation of the theoretical description of magnetotransport through a single ferromagnetic domain. Our analysis furthermore indicates the relevance of magneto-impurity scattering as a mechanism for magnetoresistance in (Ga,Mn)As.