Influence of a Transport Current on Magnetic Anisotropy in Gyrotropic Ferromagnets
Ion Garate, Allan H. MacDonald
TL;DR
This paper investigates how transport currents affect magnetic anisotropy in gyrotropic ferromagnets, specifically analyzing current-induced torques and their impact on magnetic properties in strained (Ga,Mn)As.
Contribution
It provides a quantitative analysis of current-induced changes in magnetic anisotropy energy in collinear ferromagnetic systems, focusing on strained (Ga,Mn)As.
Findings
Current-induced torques relate to modifications in magnetic anisotropy energy.
Quantitative estimates of these effects in strained (Ga,Mn)As are provided.
Implications for manipulating magnetization in ferromagnetic semiconductors.
Abstract
Current-induced torques are commonly used to manipulate non-collinear magnetization configurations. In this article we discuss current-induced torques present in a certain class of collinear magnetic systems, relating them to current-induced changes in magnetic anisotropy energy. We present a quantitative estimate of their characteristics in uniform strained ferromagnetic (Ga,Mn)As.
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