検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Vector spectroscopy for spin pumping

スピンポンピングのベクトル分光

Lustikova, J.*; 塩見 雄毅*; 齊藤 英治

Lustikova, J.*; Shiomi, Yuki*; Saito, Eiji

We propose a method to separate the inverse spin Hall effect (ISHE) from galvanomagnetic effects in spin pumping experiments on metallic bilayer systems by measuring the dc electromotive force in two orthogonal directions. Calculations of dc voltages in longitudinal and Hall directions induced in Ni$$_{81}$$Fe$$_{19}$$ and Ni$$_{81}$$Fe$$_{19}$$/Pt films at ferromagnetic resonance in a microwave cavity predict that contributions from ISHE and from the galvanomagnetic effects, i.e., the anisotropic magnetoresistance and the anomalous Hall effect. exhibit distinct signal symmetry as well as angular dependence when changing the direction of the external field with respect to the film plane. According to measurements on Ni$$_{81}$$Fe$$_{19}$$/Pt, only that dc voltage component which includes ISHE is more than five times larger than purely galvanomagnetic components. This is corroborated by results on La$$_{0.67}$$Sr$$_{0.33}$$MnO$$_{3}$$/Pt samples, demonstrating universality of this method.

Access

:

- Accesses

InCites™

:

パーセンタイル:41.84

分野:Materials Science, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.