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Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy
- Authors
- Yoon, Jungbum; Jung, Sol; Choi, Youngha; Cho, Jaehun; You, Chun-Yeol; Jung, Myung-Hwa; Yim, H. I.
- Issue Date
- Apr-2013
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.113, no.17
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 113
- Number
- 17
- ISSN
- 0021-8979
1089-7550
- Abstract
- We investigated the perpendicular magnetic anisotropy of amorphous CoSiB/Pd multilayer systems. We replaced the crystalline Co layer with an amorphous CoSiB layer in a Co/Pd multilayer system in order to reduce the domain wall pinning sites, which are mainly located at the grain boundaries and interfaces. We also found the correlation between the coercivity and the thermal activation volume of the magnetization reversal in the amorphous CoSiB/Pd multilayers. The time-dependent magnetization reversal was investigated using the magneto-optical Kerr effect image and the magnetic field sweep-rate-dependent coercivity. (C) 2013 AIP Publishing LLC.
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