Scaling relation between anomalous Nernst and Hall effect in [Pt/Co]n multilayers

被引：58

作者：

Fang, C. ^{[1
]}

Wan, C. H. ^{[1
]}

Yuan, Z. H. ^{[1
]}

Huang, L. ^{[1
]}

Zhang, X. ^{[1
]}

Wu, H. ^{[1
]}

Zhang, Q. T. ^{[1
]}

Han, X. F. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2016年 / 93卷 / 05期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevB.93.054420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The anomalous Nernst coefficient, anomalous Hall angle, and Seebeck coefficient have been measured in the same series of [Pt/Co](n) superlattices in which spin-orbit coupling is dominated by interfaces. With an increase in the number of interfaces from 1 to 15, the anomalous Nernst coefficient and anomalous Hall angle simultaneously increase, by 350% and 430%, respectively. Furthermore, they even scale linearly with each other, while the Seebeck coefficient and magnetization of the superlattices vary a little. Based on the linear scaling relation, a physical scenario behind the anomalous Nernst effect, as well as a formula relating the Nernst coefficient, the Hall angle, and the Seebeck coefficient, is proposed. The work not only demonstrates an effective way to enhance the anomalous Nernst effect in ferromagnetic conductors but also can bring about deeper insight into the anomalous Nernst effect.

引用

页数：7

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