Tunable angular-dependent magnetoresistance correlations in magnetic films and their implications for spin Hall magnetoresistance analysis

作者：Lvkuan Zou, Y. Zhang, Lin Gu, Jun Cai, Li Sun · 发表于：Physical review. B./Physical review. B · 年份：2016 · DOI：10.1103/physrevb.93.075309 · 被引用次数：38 · 研究领域：Magnetic properties of thin films、Magnetic Properties and Applications、Theoretical and Computational Physics

Angular-dependent magnetoresistance (MR) is considered to be intrinsic to spintronic materials, represented by the classical anisotropic MR (AMR) phenomenon and the recently emerged spin Hall MR (SMR). So far, isotropic AMR, AMR with geometric size effect and interfacial effect, and SMR have been treated separately to explain distinct MR correlations observed in various systems. Current study shows all four types of MR correlations can be reproduced in Fe thin films depending on the film thickness, texture, interface, and morphology. Results suggest previous explanations of the thin-film MR correlations are incomplete and it is inappropriate to use a specific MR angular-dependent correlation as the sole criterion in determining the origin of AMR or ascertaining the exclusive existence of SMR.