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Natural Science and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore, Graduate School of Computer Science and System Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
Graduate School of Computer Science and System Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
Natural Science and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore
Department of Physics and Astrophysics, University of Delhi, 110007, India
Graduate School of Computer Science and System Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
抄録
Herein, spin transport dynamics across asymmetric Fe50Pt50/Cu/Fe20Ni80 soft‐magnetic trilayer structure is reported and thereby modulation of magnetic parameters including damping and effective field is determined by means of the angular dependence of broadband ferromagnetic resonance measurements. At distinct precession of individual magnetic layer, spin‐pumping is found to be prevalent with expected linewidth increase. Mutual precession for wide range of resonance configuration reveals a collective reduction in anisotropy field of around 200 mT for both Fe50Pt50 and Fe20Ni80 systems. Subsequent observation of no‐excess interface damping shows the possible control of spin‐pumping effect by tuning the net flow of spin‐current in a multilayer structure. These experimental findings have significance for microwave devices that require tunable anisotropy field in magnetic multilayers.
雑誌名
Physica status solidi - Rapid Research Letters
巻
13
号
10
ページ
1900267-1 - 1900267-6
発行年
2019-07-03
出版者
Wiley‐VCH Verlag GmbH & Co. KGaA
ISSN
1862-6270
DOI
info:doi/10.1002/pssr.201900267
権利
Copyright (c) 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
This is the pre-peer reviewed version of the following article: https://onlinelibrary.wiley.com/doi/full/10.1002/pssr.201900267, which has been published in final form at https://doi.org/10.1002/pssr.201900267. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Spin Pumping in Asymmetric Fe50Pt50/Cu/Fe20Ni80 Trilayer Structure
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