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

doi:10.1088/1674-1056/ad553d

中国物理B ›› 2024, Vol. 33 ›› Issue (9): 97202-097202.doi: 10.1088/1674-1056/ad553d

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

Zhaocong Huang(黄兆聪)^1,†, Xuejian Tang(唐学健)^1,†, Qian Chen(陈倩)^1,‡, Wei Jiang(蒋伟)¹, Qingjie Guo(郭庆杰)¹, Milad Jalali¹, Jun Du(杜军)², and Ya Zhai(翟亚)^1,§

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

收稿日期:2024-06-02 修回日期:2024-06-05 接受日期:2024-06-07 发布日期:2024-08-22
通讯作者: Qian Chen, Ya Zhai E-mail:qchen2022@seu.edu.cn;yazhai@seu.edu.cn
基金资助:
Project supported by National Key Research and Development Program of China (Grant No. 2023YFA1406603), the National Natural Science Foundation of China (Grant Nos. 52071079, 12274071, 12374112, and T2394473), and Jiangsu Funding Program for Excellent Postdoctoral Talent (Grant No. 2023ZB491).

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

Zhaocong Huang(黄兆聪)^1,†, Xuejian Tang(唐学健)^1,†, Qian Chen(陈倩)^1,‡, Wei Jiang(蒋伟)¹, Qingjie Guo(郭庆杰)¹, Milad Jalali¹, Jun Du(杜军)², and Ya Zhai(翟亚)^1,§

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

Received:2024-06-02 Revised:2024-06-05 Accepted:2024-06-07 Published:2024-08-22
Contact: Qian Chen, Ya Zhai E-mail:qchen2022@seu.edu.cn;yazhai@seu.edu.cn
Supported by:
Project supported by National Key Research and Development Program of China (Grant No. 2023YFA1406603), the National Natural Science Foundation of China (Grant Nos. 52071079, 12274071, 12374112, and T2394473), and Jiangsu Funding Program for Excellent Postdoctoral Talent (Grant No. 2023ZB491).

摘要/Abstract

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 ferromagnetic 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 alterations in static exchange interactions. These findings contribute to advancing the application of synthetic antiferromagnetic structures in magnonic devices.

关键词: spin pumping, spin transmission, synthetic antiferromagnetic structures, spin dynamics

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 ferromagnetic 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 alterations in static exchange interactions. These findings contribute to advancing the application of synthetic antiferromagnetic structures in magnonic devices.

Key words: spin pumping, spin transmission, synthetic antiferromagnetic structures, spin dynamics

中图分类号: (Current-driven spin pumping)

72.25.Pn

72.25.Mk (Spin transport through interfaces) 76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance) 67.30.hj (Spin dynamics)

Zhaocong Huang(黄兆聪), Xuejian Tang(唐学健), Qian Chen(陈倩), Wei Jiang(蒋伟), Qingjie Guo(郭庆杰), Milad Jalali, Jun Du(杜军), and Ya Zhai(翟亚). In-phase and out-of-phase spin pumping effects in Py/Ru/Py synthetic antiferromagnetic structures[J]. 中国物理B, 2024, 33(9): 97202-097202.

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

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

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