Back to Search Start Over

Self-induced inverse spin Hall effect in permalloy at room temperature

Authors :
Tsukahara, Ayaka
Ando, Yuichiro
Kitamura, Yuta
Emito, Hiroyuki
Shikoh, Eiji
Delmo, Michael P.
Shinjo, Teruya
Shiraishi, Masashi
Publication Year :
2013

Abstract

Inverse spin Hall effect (ISHE) allows the conversion of pure spin current into charge current in nonmagnetic materials (NM) due to spin-orbit interaction (SOI). In ferromagnetic materials (FM), SOI is known to contribute to anomalous Hall effect (AHE), anisotropic magnetoresistance (AMR), and other spin-dependent transport phenomena. However, SOI in FM has been ignored in ISHE studies in spintronic devices, and the possibility of "self-induced ISHE" in FM has never been explored until now. In this paper, we demonstrate the experimental verification of ISHE in FM. We found that the spin-pumping-induced spin current in permalloy (Py) film generates a transverse electromotive force (EMF) in the film itself, which results from the coupling of spin current and SOI in Py. The control experiments ruled out spin rectification effect and anomalous Nernst effect as the origin of the EMF.<br />Comment: 28 page, 5 figures, supplemental information (To appear in Physical Review B (Regular Article))

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1301.3580
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevB.89.235317