Evolution of anomalous Hall behavior in thin Pt/Co/Pt trilayers

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:405

Article

Sun, Niu-yi^1,2,3  Zhang, Yan-qing^1,2,3  Che, Wen-ru^1,2,3  Shan, Rong^1,2,3  Zhu, Zhen-gang⁴ 

[1] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct, Shanghai 200092, Peoples R China

[2] Tongji Univ, Pohl Inst Solid State Phys, Shanghai 200092, Peoples R China

[3] Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China

[4] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China

关键词: Pt/Co/Pt;    Trilayer;    Anomalous Hall effect;    Scaling;   

DOI  :  10.1016/j.jmmm.2015.12.091

来源: Elsevier

【 摘 要 】

In this work, through controlling spin scattering mechanisms, anomalous Hall behaviors exhibit a series of evolutions in thin Pt/Co/Pt trilayers. The shape of Hall resistivity over longitudinal resistivity (p,r p versus pxx) curve turns from bending to linear and then bending again in most trilayers. This kind of evolution cannot be explained by the conventional linear scaling of anomalous Hall effect. It should be ascribed to the contribution of spin-phonon skew scattering. Our research may help to understand spin scattering behavior in low-dimensional systems more deeply and build a proper synergy between theory and experiment on the research of anomalous Hall effect. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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