Signatures of magnetism control by flow of angular momentum.

ABSTRACT: Exploring new strategies to manipulate the order parameter of magnetic materials by electrical means is of great importance not only for advancing our understanding of fundamental magnetism but also for unlocking potential applications. A well-established concept uses gate voltages to control magnetic properties by modulating the carrier population in a capacitor structure^1-5. Here we show that, in Pt/Al/Fe/GaAs(001) multilayers, the application of an in-plane charge current in Pt leads to a shift in the ferromagnetic resonance field depending on the microwave frequency when the Fe film is sufficiently thin. The experimental observation is interpreted as a current-induced modification of the magnetocrystalline anisotropy ΔH_A of Fe. We show that (1) ΔH_A decr

SUBMITTER: Chen L 

PROVIDER: S-EPMC11410660 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature