Perpendicular magnetic anisotropy in Co$_2$MnGa

B. M. Ludbrook; B. J. Ruck; S. Granville

Perpendicular magnetic anisotropy in Co$_2$MnGa

Materials Science 2016-11-17 v1

Authors: B. M. Ludbrook , B. J. Ruck , S. Granville

Abstract

We report perpendicular magnetic anisotropy in the ferromagnetic Heusler alloy Co $_2$ MnGa in a MgO/Co $_2$ MnGa/Pd trilayer stack for Co $_2$ MnGa 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 $\rho_{xy}^{AHE}$ with $\rho_{xx}$ , suggesting the intrinsic and side-jump mechanisms are largely responsible for the anomalous Hall effect in this material.

Keywords

perpendicular magnetic anisotropy Co2MnGa Heusler alloy spin reorientation transition anomalous Hall effect thin films ferromagnetic

Cite

@article{arxiv.1611.05110,
  title  = {Perpendicular magnetic anisotropy in Co$_2$MnGa},
  author = {B. M. Ludbrook and B. J. Ruck and S. Granville},
  journal= {arXiv preprint arXiv:1611.05110},
  year   = {2016}
}

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