Spin pumping at the Co2FeAl0.5Si0.5/Pt interface

doi:10.1088/1674-1056/23/1/018503

Chin. Phys. B ›› 2014, Vol. 23 ›› Issue (1): 18503-018503.doi: 10.1088/1674-1056/23/1/018503

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface

吴勇^a, 赵月雷^{a b}, 熊强^a, 徐晓光^a, 孙阳^b, 张十庆^c, 姜勇^a

a State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Chongqing Materials Research Institute, Chongqing 400700, China

收稿日期:2013-03-29 修回日期:2013-05-09 出版日期:2013-11-12 发布日期:2013-11-12
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2012CB932702), the National Natural Science Foundation of China (Grant Nos. 51271020, 51071022, and 11174031), the Program for Changjiang Scholars and Innovative Research Team in University, China (PCSIRT), the Beijing Nova Program, China (Grant No. 2011031), and the Fundamental Research Funds for the Central Universities of Ministry of Education of China.

Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface

Wu Yong (吴勇)^a, Zhao Yue-Lei (赵月雷)^{a b}, Xiong Qiang (熊强)^a, Xu Xiao-Guang (徐晓光)^a, Sun Young (孙阳)^b, Zhang Shi-Qing (张十庆)^c, Jiang Yong (姜勇)^a

a State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Chongqing Materials Research Institute, Chongqing 400700, China

Received:2013-03-29 Revised:2013-05-09 Online:2013-11-12 Published:2013-11-12
Contact: Xu Xiao-Guang E-mail:xgxu@ustb.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2012CB932702), the National Natural Science Foundation of China (Grant Nos. 51271020, 51071022, and 11174031), the Program for Changjiang Scholars and Innovative Research Team in University, China (PCSIRT), the Beijing Nova Program, China (Grant No. 2011031), and the Fundamental Research Funds for the Central Universities of Ministry of Education of China.

摘要/Abstract

摘要： Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt and Pt/Co₂FeAl_0.5Si_0.5 interfaces has been studied by ferromagnetic resonance technology (FMR). The spin mixing conductance of the Co₂FeAl_0.5Si_0.5/Pt and Pt/Co₂FeAl_0.5Si_0.5 interfaces was determined to be 3.7×10¹⁹ m^-2 and 2.1×10¹⁹ m^-2 by comparing the Gilbert damping in a Co₂FeAl_0.5Si_0.5 single film, Co₂FeAl_0.5Si_0.5/Pt bilayer film and a Pt/Co₂FeAl_0.5Si_0.5/Pt trilayer film. Spin pumping is more efficient in the Co₂FeAl_0.5Si_0.5/Pt bilayer film than in permalloy/Pt bilayer film.

关键词: spin pumping, spin mix conductance, Gilbert damping constant, Co₂FeAl_0.5Si_0.5

Abstract: Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt and Pt/Co₂FeAl_0.5Si_0.5 interfaces has been studied by ferromagnetic resonance technology (FMR). The spin mixing conductance of the Co₂FeAl_0.5Si_0.5/Pt and Pt/Co₂FeAl_0.5Si_0.5 interfaces was determined to be 3.7×10¹⁹ m^-2 and 2.1×10¹⁹ m^-2 by comparing the Gilbert damping in a Co₂FeAl_0.5Si_0.5 single film, Co₂FeAl_0.5Si_0.5/Pt bilayer film and a Pt/Co₂FeAl_0.5Si_0.5/Pt trilayer film. Spin pumping is more efficient in the Co₂FeAl_0.5Si_0.5/Pt bilayer film than in permalloy/Pt bilayer film.

Key words: spin pumping, spin mix conductance, Gilbert damping constant, Co₂FeAl_0.5Si_0.5

中图分类号: (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)

85.75.-d

07.57.Pt (Submillimeter wave, microwave and radiowave spectrometers; magnetic resonance spectrometers, auxiliary equipment, and techniques) 46.40.Ff (Resonance, damping, and dynamic stability)

吴勇, 赵月雷, 熊强, 徐晓光, 孙阳, 张十庆, 姜勇. Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface[J]. Chin. Phys. B, 2014, 23(1): 18503-018503.

Wu Yong (吴勇), Zhao Yue-Lei (赵月雷), Xiong Qiang (熊强), Xu Xiao-Guang (徐晓光), Sun Young (孙阳), Zhang Shi-Qing (张十庆), Jiang Yong (姜勇). Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface[J]. Chin. Phys. B, 2014, 23(1): 18503-018503.

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Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface

Spin pumping at the Co₂FeAl_0.5Si_0.5/Pt interface

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