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Spin pumping at the Co2FeAlo.sSio.5/Pt interface
作者姓名:吴勇  赵月雷  熊强  徐晓光  孙阳  张十庆  姜勇
作者单位:[1]State Key Laboratory for Adwmced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Be(ring, Beijing 100083, China [2]Beijing National Laboratory lbr Condensed M:ltter Physics. Institute of Physics. Chinese Academy of Sciences, Beijing 100190, ChinaBc~jing Nati(mal Laboratory Ibr CondetTsed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China [3]Chongqing Materials Research lnstitule, Chongqing 400700, China
基金项目:Project suppqarted by the National Basic Research Program of China {Grant No. 2012CB9327021, the National Natural Science Foundation of China (Grant Nos. 51271020, 51071022, and I 11740311. 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:Spin pumping at the Co2FeAlo.sSio.5/Pt and Pt/Co2FeAIo.sSio.5 interfaces has been studied by ferromagnetic res- onance technology (FMR). The spin mixing conductance of the Co, FeA~o.sSio.s/Pt and Pt/Co2FeAlo.sSio.5 interfaces was determined to be 3.7~ lO19 m-2 and 2.1 ~ lO19 m 2 by comparing the Gilbert damping in a Co2FeAIo.sSio.5 sin- gle film, Co2FeAlo.sSio.s/Pt bilayer film and a Pt/Co2FeAIo.sSio.s/Pt trilayer film. Spin pumping is more efficient in the Co2FeAlosSios/Pt bilayer film than in permalloy/Pt bilayer film.

关 键 词:spin  pumping    spin  mix  conductance    Gilbert  damping  constant    Co2FeAlo  sSio  s
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