| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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 |
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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.
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Received: 02 June 2024
Revised: 05 June 2024
Accepted manuscript online: 07 June 2024
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PACS:
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72.25.Pn
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(Current-driven spin pumping)
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72.25.Mk
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(Spin transport through interfaces)
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76.50.+g
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(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
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67.30.hj
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(Spin dynamics)
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| Fund: 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). |
Corresponding Authors:
Qian Chen, Ya Zhai
E-mail: qchen2022@seu.edu.cn;yazhai@seu.edu.cn
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Cite this article:
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 2024 Chin. Phys. B 33 097202
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