Observation of pure inverse spin Hall effect in ferromagnetic metals via ferromagnetic/antiferromagnetic exchange-bias structures

被引：41

作者：

Wu, H. ^{[1
]}

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

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

Zhang, X. ^{[1
]}

Jiang, J. ^{[1
]}

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

Wen, Z. C. ^{[1
]}

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

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2015年 / 92卷 / 05期

关键词：

ROOM-TEMPERATURE; SPINTRONICS; INJECTION;

D O I：

10.1103/PhysRevB.92.054404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report that the spin current generated by the spin Seebeck effect (SSE) in yttrium iron garnet (YIG) can be detected by a ferromagnetic metal (NiFe). By using the ferromagnetic/antiferromagnetic (FM/AFM) exchange bias structure (NiFe/IrMn), the inverse spin Hall effect (ISHE) and planar Nernst effect (PNE) of NiFe can be unambiguously separated, allowing us to observe a pure ISHE signal. After eliminating the in-plane temperature gradient in NiFe, we can even observe a pure ISHE signal without PNE from NiFe itself. It is worth noting that a large spin Hall angle (0.098) of NiFe is obtained, which is comparable with Pt. This work provides a kind of FM/AFM exchange bias structure to detect the spin current by charge signals, and highlights that ISHE in ferromagnetic metals can be used in spintronic research and applications.

引用

页数：6

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