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Magnetostatic spin wave in a very thin CoFeB film grown on an amorphous FeZr buffer layer
- Authors
- Kim, Dongseok; Nawaoka, Kohei; Miwa, Shinji; Park, Seung-Young; Shiota, Yoichi; You, Chun-Yeol; Cho, Jaehun; Lee, Byung-Chan; Suzuki, Yoshishige; Rhie, Kungwon
- Issue Date
- 9월-2015
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- MSSW; Spin wave; CoFeB; FeZr; Magnetic anisotropy
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.67, no.5, pp.906 - 910
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 67
- Number
- 5
- Start Page
- 906
- End Page
- 910
- ISSN
- 0374-4884
- Abstract
- The transmission of a magnetostatic spin wave in a very thin CoFeB film (2.3 nm) grown on an amorphous paramagnetic FeZr layer was demonstrated for the first time by using an antenna method with coplanar waveguides. The attenuation length, determined by using the difference in intensities due to a change in the distance between the antennas, was estimated to be 0.7 A mu m. We discuss why we are able to observe spin-wave propagation in such a thin magnetic layer, taking the low damping constant (alpha = 0.0027) of the CoFeB films grown on the amorphous FeZr layer and the estimated large group velocity in the CoFeB films into account.
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Related Researcher
- Rhie, Kung won
- 과학기술대학 (디스플레이·반도체물리학부 반도체물리전공)