Abstract
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.
基金项目
National Key Research and Development Program of China(2023YFA1406603)
National Natural Science Foundation of China(52071079)
National Natural Science Foundation of China(12274071)
National Natural Science Foundation of China(12374112)
National Natural Science Foundation of China(T2394473)
Jiangsu Funding Program for Excellent Postdoctoral Talent(2023ZB491)
NETL
NSTL
万方数据