In-phase and out-of-phase spin pumping effects in Py/Ru/Py synthetic antiferromagnetic structures

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外文摘要：The spin pumping effect in magnetic heterostructures and multilayers is a highly effective method for the generation and transmission of spin currents.In the increasingly prominent synthetic antiferromagnetic structures,the two ferromag-netic layers demonstrate in-phase and out-of-phase states,corresponding to acoustic and optical precession modes.Within this context,our study explores the spin pumping effect in Py/Ru/Py synthetic antiferromagnetic structures across different modes.The heightened magnetic damping resulting from the spin pumping effect in the in-phase state initially decreases with increasing Py thickness before stabilizing.Conversely,in the out-of-phase state,the amplified damping exceeds that of the in-phase state,suggesting a greater spin relaxation within this configuration,which demonstrates sensitivity to alter-ations in static exchange interactions.These findings contribute to advancing the application of synthetic antiferromagnetic structures in magnonic devices.

外文关键词：

spin pumpingspin transmissionsynthetic antiferromagnetic structuresspin dynamics

作者：

黄兆聪、唐学健、陈倩、蒋伟、郭庆杰、Milad Jalali、杜军、翟亚

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作者单位：

Key Laboratory of Quantum Materials and Devices of Ministry of Education,School of Physics,Southeast University,Nanjing 211189,China

National Laboratory of Solid Microstructures,Nanjing University,Nanjing 210093,China

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaJiangsu Funding Program for Excellent Postdoctoral Talent

项目编号：

2023YFA1406603520710791227407112374112T23944732023ZB491

出版年：

2024

DOI：

10.1088/1674-1056/ad553d

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(9)