Spin current transmission in Co1-xTbx films

doi:10.1088/1674-1056/ac3d83

中国物理B ›› 2022, Vol. 31 ›› Issue (2): 27504-027504.doi: 10.1088/1674-1056/ac3d83

Spin current transmission in Co_1-xTb_x films

Li Wang(王力)^1,2, Yangtao Su(苏仰涛)^1,2, Yang Meng(孟洋)^1,2, Haibin Shi(石海滨)^1,2, Xinyu Cao(曹昕宇)^1,2, and Hongwu Zhao(赵宏武)^1,2,3,†

1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Songshan Lake Materials Laboratory, Dongguan 523808, China

收稿日期:2021-10-02 修回日期:2021-11-11 接受日期:2021-11-26 出版日期:2022-01-13 发布日期:2022-01-18
通讯作者: Hongwu Zhao E-mail:hwzhao@iphy.ac.cn
基金资助:
Project supported by the National Key Basic Research Project of China (Grant No. 2016YFA0300600), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB33020300), and the National Natural Science Foundation of China (Grant Nos. 11604375 and 11874416).

Spin current transmission in Co_1-xTb_x films

Li Wang(王力)^1,2, Yangtao Su(苏仰涛)^1,2, Yang Meng(孟洋)^1,2, Haibin Shi(石海滨)^1,2, Xinyu Cao(曹昕宇)^1,2, and Hongwu Zhao(赵宏武)^1,2,3,†

1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Songshan Lake Materials Laboratory, Dongguan 523808, China

Received:2021-10-02 Revised:2021-11-11 Accepted:2021-11-26 Online:2022-01-13 Published:2022-01-18
Contact: Hongwu Zhao E-mail:hwzhao@iphy.ac.cn
Supported by:
Project supported by the National Key Basic Research Project of China (Grant No. 2016YFA0300600), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB33020300), and the National Natural Science Foundation of China (Grant Nos. 11604375 and 11874416).

摘要/Abstract

摘要： We investigate the spin to charge conversion phenomena in Y₃Fe₅O₁₂/Pt/Co_1-xTb_x/Pt multilayers by both the spin pumping and spin Seebeck effects. We find that the spin transport efficiency is irrelevant to magnetization states of the perpendicular magnetized Co_1-xTb_x films, which can be attributed to the symmetry requirement of the inverse transverse spin Hall effect. Furthermore, the spin transmission efficiency is significantly affected by the film concentration, revealing the dominant role of extrinsic impurity scattering caused by Tb impurity. The present results provide further guidance for enhancing the spin transport efficiency and developing spintronic devices.

关键词: spin to charge conversion, perpendicular magnetized ferrimagnetic alloy, inverse spin Hall effect

Abstract: We investigate the spin to charge conversion phenomena in Y₃Fe₅O₁₂/Pt/Co_1-xTb_x/Pt multilayers by both the spin pumping and spin Seebeck effects. We find that the spin transport efficiency is irrelevant to magnetization states of the perpendicular magnetized Co_1-xTb_x films, which can be attributed to the symmetry requirement of the inverse transverse spin Hall effect. Furthermore, the spin transmission efficiency is significantly affected by the film concentration, revealing the dominant role of extrinsic impurity scattering caused by Tb impurity. The present results provide further guidance for enhancing the spin transport efficiency and developing spintronic devices.

Key words: spin to charge conversion, perpendicular magnetized ferrimagnetic alloy, inverse spin Hall effect

中图分类号: (Rare earth metals and alloys)

71.20.Eh

72.25.-b (Spin polarized transport) 72.25.Hg (Electrical injection of spin polarized carriers) 75.50.Gg (Ferrimagnetics)

Li Wang(王力), Yangtao Su(苏仰涛), Yang Meng(孟洋), Haibin Shi(石海滨), Xinyu Cao(曹昕宇), and Hongwu Zhao(赵宏武). Spin current transmission in Co_1-xTb_x films[J]. 中国物理B, 2022, 31(2): 27504-027504.

Li Wang(王力), Yangtao Su(苏仰涛), Yang Meng(孟洋), Haibin Shi(石海滨), Xinyu Cao(曹昕宇), and Hongwu Zhao(赵宏武). Spin current transmission in Co_1-xTb_x films[J]. Chin. Phys. B, 2022, 31(2): 27504-027504.

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Spin current transmission in Co_1-xTb_x films

Spin current transmission in Co_1-xTb_x films

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