| Spin current transmission in Co1-xTbx films |
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| 作者姓名： | 王力 苏仰涛 孟洋 石海滨 曹昕宇 赵宏武 |
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| 作者单位： | 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 |
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| 基金项目： | 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);the National Natural Science Foundation of China(Grant Nos.11604375 and 11874416)。 |
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| 摘 要： | We investigate the spin to charge conversion phenomena in Y3Fe5O12/Pt/Co1-xTbx/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;Tb;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.
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| 关 键 词： | spin to charge conversion perpendicular magnetized ferrimagnetic alloy inverse spin Hall effect |
| 收稿时间： | 2021-10-02 |
Spin current transmission in Co1-xTbx films |
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| Li Wang,Yangtao Su,Yang Meng,Haibin Shi,Xinyu Cao,Hongwu Zhao.Spin current transmission in Co1-xTbx films[J].Chinese Physics B,2022,31(2):27504-027504. |
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| Authors: | Li Wang Yangtao Su Yang Meng Haibin Shi Xinyu Cao Hongwu Zhao |
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| Affiliation: | 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 |
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| Abstract: | We investigate the spin to charge conversion phenomena in Y3Fe5O12/Pt/Co1-xTbx/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 Co1-xTbx 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. |
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| Keywords: | spin to charge conversion perpendicular magnetized ferrimagnetic alloy inverse spin Hall effect |
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