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arXiv · 2202.07264

Anisotropic magneto-resistance in MgO-based magnetic tunnel junctions induced by spin-orbit coupling

Hui-Min Tang·Shi-zhuo Wang·Xin-tao Jia
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Abstract

We performed a first-principles study of the tunneling anisotropic magneto-resistance (TAMR) in Ag(Ir,Pt)$/$MgO$/$Fe junctions. Enhanced TAMR with ideal and skewed fourfold angular dependence is found in-plane and out-of-plane TAMR of the system, respectively, which shows simple barrier thickness dependency with number around 10\% in some junctions. The complex angular dependency of the interfacial resonant states due to the spin-orbit coupling should be responsible to the complex and enhanced TAMR found in these junctions.

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Hui-Min Tang, Shi-zhuo Wang, Xin-tao Jia. 2022-02-15. Anisotropic magneto-resistance in MgO-based magnetic tunnel junctions induced by spin-orbit coupling. https://doi.org/10.1103/physrevb.106.094406

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