Quantification of the spin-Hall anti-damping torque with a resonance spectrometer

被引：15

作者：

Emori, Satoru ^{[1
]}

Nan, Tianxiang ^{[1
]}

Oxholm, Trevor M. ^{[1
]}

Boone, Carl T. ^{[1
]}

Jones, John G. ^{[2
]}

Howe, Brandon M. ^{[2
]}

Brown, Gail J. ^{[2
]}

Budil, David E. ^{[3
]}

Sun, Nian X. ^{[1
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

[2] Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

[3] Northeastern Univ, Dept Chem, Boston, MA 02115 USA

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 02期

基金：

中国国家自然科学基金;

关键词：

DRIVEN;

D O I：

10.1063/1.4906062

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a simple technique using a cavity-based resonance spectrometer to quantify the anti-damping torque due to the spin Hall effect. Modification of ferromagnetic resonance is observed as a function of small DC current in sub-mm-wide strips of bilayers, consisting of magnetically soft FeGaB and strong spin-Hall metal Ta. From the detected current-induced linewidth change, we obtain an effective spin Hall angle of 0.08-0.09 independent of the magnetic layer thickness. Our results demonstrate that a sensitive resonance spectrometer can be a general tool to investigate spin Hall effects in various material systems, even those with vanishingly low conductivity and magnetoresistance. (C) 2015 AIP Publishing LLC.

引用

页数：5

共 45 条

[41] Determination of the spin Hall effect and the spin diffusion length of Pt from self-consistent fitting of damping enhancement and inverse spin-orbit torque measurements
Berger, Andrew J.
Edwards, Eric R. J.
Nembach, Hans T.
Karis, Olof
Weiler, Mathias
Silva, T. J.
PHYSICAL REVIEW B, 2018, 98 (02)
[42] Influence on ferromagnetic resonance signal of perpendicular magnetic anisotropic Co/Pt bilayer thin film due to microwave induced spin-Hall effect
Ahmad, Saood
Shah, Jyoti
Puri, Nitin K.
Negi, P. S.
Kotnala, R. K.
APPLIED PHYSICS LETTERS, 2013, 103 (03)
[43] Crystallographic dependence of the spin Hall angle in epitaxial Pt films: Comparison of optical and electrical detection of spin-torque ferromagnetic resonance techniques
Grover, Bharat
Hazra, Binoy Krishna
Ma, Tianping
Pal, Banabir
Bernstein, Nirel
Rothschild, Amit
Srivastava, Abhay Kant
Choudhury, Samiran
Woltersdorf, Georg
Capua, Amir
Parkin, Stuart S. P.
APPLIED PHYSICS LETTERS, 2022, 120 (17)
[44] Spin-torque ferromagnetic resonance measurements utilizing spin Hall magnetoresistance in W/Co40Fe40B20/MgO structures
He, Congli
Navabi, Aryan
Shao, Qiming
Yu, Guoqiang
Wu, Di
Zhu, Weihua
Zheng, Cheng
Li, Xiang
He, Qing Lin
Razavi, Seyed Armin
Wong, Kin L.
Zhang, Zongzhi
Amiri, Pedram Khalili
Wang, Kang L.
APPLIED PHYSICS LETTERS, 2016, 109 (20)
[45] The positive correlation between interface Dzyaloshinskii-Moriya interaction and damping-like spin Hall torque in the Ta/Pt/CoFeB/MgO/Ta system
Zhang, Qihan
Chen, Yifei
Zheng, Yudiang
Cao, Jiangwei
Xue, Desheng
Fan, Xiaolong
APPLIED PHYSICS EXPRESS, 2019, 12 (10)

← 1 2 3 4 5 →