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

作　　者：Zhaocong Huang Xuejian Tang Qian Chen Wei Jiang Qingjie Guo Milad Jalali Jun Du Ya Zhai 黄兆聪;唐学健;陈倩;蒋伟;郭庆杰;Milad Jalali;杜军;翟亚(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)

机构地区：[1]Key Laboratory of Quantum Materials and Devices of Ministry of Education,School of Physics,Southeast University,Nanjing 211189,China [2]National Laboratory of Solid Microstructures,Nanjing University,Nanjing 210093,China

出　　处：《Chinese Physics B》2024年第9期541-545,共5页中国物理B（英文版）

基　　金：National Key Research and De-velopment Program of China(Grant No.2023YFA1406603);the National Natural Science Foundation of China(Grant Nos.52071079,12274071,12374112,and T2394473);Jiangsu Funding Program for Excellent Postdoctoral Talent(Grant No.2023ZB491).

摘　　要：The spin pumping effect in magnetic heterostructures and multilayers is a highly effective method for the generationand transmission of spin currents. In the increasingly prominent synthetic antiferromagnetic structures, the two ferromagneticlayers demonstrate in-phase and out-of-phase states, corresponding to acoustic and optical precession modes. Withinthis context, our study explores the spin pumping effect in Py/Ru/Py synthetic antiferromagnetic structures across differentmodes. The heightened magnetic damping resulting from the spin pumping effect in the in-phase state initially decreaseswith increasing Py thickness before stabilizing. Conversely, in the out-of-phase state, the amplified damping exceeds thatof the in-phase state, suggesting a greater spin relaxation within this configuration, which demonstrates sensitivity to alterationsin static exchange interactions. These findings contribute to advancing the application of synthetic antiferromagneticstructures in magnonic devices.

关 键 词：spin pumping spin transmission synthetic antiferromagnetic structures spin dynamics 

分 类 号：O469[理学—凝聚态物理]