Perpendicular magnetic anisotropy in Co₂MnGa

2016/11/16 by B. M. Ludbrook, Ludbrook, B. M., B. J. Ruck +3
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Heusler alloys: electronic and magnetic properties #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci)

paper · pdf · doi:10.48550/arxiv.1611.05110

openalex publication_date 2016/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report perpendicular magnetic anisotropy in the ferromagnetic Heusler alloy Co₂MnGa in a MgO/Co₂MnGa/Pd trilayer stack for Co₂MnGa thicknesses up to 3.5 nm. There is a thickness- and temperature-dependent spin reorientation transition from perpendicular to in-plane magnetic anisotropy which we study through the anomalous Hall effect. From the temperature dependence of the anomalous Hall effect, we observe the expected scaling of ρ_xy^AHE with ρ_xx, suggesting the intrinsic and side-jump mechanisms are largely responsible for the anomalous Hall effect in this material.

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