Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy

Jungbum Yoon; Sol Jung; Youngha Choi; Jaehun Cho; Chun Yeol You; Myung Hwa Jung; H. I. Yim

doi:10.1063/1.4801425

Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy

Jungbum Yoon, Sol Jung, Youngha Choi, Jaehun Cho, Chun Yeol You, Myung Hwa Jung, H. I. Yim

Department of Physics and Chemistry

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8 Scopus citations

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.

Original language	English
Article number	17A342
Journal	Journal of Applied Physics
Volume	113
Issue number	17
DOIs	https://doi.org/10.1063/1.4801425
State	Published - 7 May 2013

Bibliographical note

Funding Information:
This work was supported by the NRF funds (Grant Nos. 2010-0023798, 2010-0022040, and 2011-C00017) of the Ministry of Education, Science, and Technology of Korea, by the Korea Research Foundation Grant 2012 (2012015170), and by the IT R&D program of MKE/KEIT (10043398).

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@article{d4224a63289941bab50e88d62823ab84,

title = "Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy",

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.",

author = "Jungbum Yoon and Sol Jung and Youngha Choi and Jaehun Cho and You, \{Chun Yeol\} and Jung, \{Myung Hwa\} and Yim, \{H. I.\}",

note = "Funding Information: This work was supported by the NRF funds (Grant Nos. 2010-0023798, 2010-0022040, and 2011-C00017) of the Ministry of Education, Science, and Technology of Korea, by the Korea Research Foundation Grant 2012 (2012015170), and by the IT R\&D program of MKE/KEIT (10043398).",

year = "2013",

month = may,

day = "7",

doi = "10.1063/1.4801425",

language = "English",

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journal = "Journal of Applied Physics",

issn = "0021-8979",

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T1 - Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy

AU - Yoon, Jungbum

AU - Jung, Sol

AU - Choi, Youngha

AU - Cho, Jaehun

AU - You, Chun Yeol

AU - Jung, Myung Hwa

AU - Yim, H. I.

N1 - Funding Information: This work was supported by the NRF funds (Grant Nos. 2010-0023798, 2010-0022040, and 2011-C00017) of the Ministry of Education, Science, and Technology of Korea, by the Korea Research Foundation Grant 2012 (2012015170), and by the IT R&D program of MKE/KEIT (10043398).

PY - 2013/5/7

Y1 - 2013/5/7

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84877741099

U2 - 10.1063/1.4801425

DO - 10.1063/1.4801425

M3 - Article

AN - SCOPUS:84877741099

SN - 0021-8979

VL - 113

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 17

M1 - 17A342

ER -

Time-dependent magnetization reversal in amorphous CoSiB/Pd multilayers with perpendicular magnetic anisotropy

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