Dense stripe domains in a nanocrystalline CoFeSiB thin film

Jungbum Yoon; Seung young Park; Younghun Jo; Myung Hwa Jung; Chun Yeol You; Taewan Kim; Jang Roh Rhee; Young Keun Kim

doi:10.1016/j.cap.2008.06.009

Dense stripe domains in a nanocrystalline CoFeSiB thin film

Jungbum Yoon, Seung young Park, Younghun Jo, Myung Hwa Jung, Chun Yeol You, Taewan Kim, Jang Roh Rhee, Young Keun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We recently reported a possible antiferromagnetically coupled phase in a Co-rich CoFeSiB thin film, that had a partially nanocrystalline Co phase in an amorphous CoFeSiB matrix. Although an amorphous CoFeSiB film should show a ferromagnetic behavior, we observed an antiferromagnetic coupling associated with a nanocrystalline Co phase in the hysteresis-loop measurements of Co-rich CoFeSiB thin films. We ascribed the observed antiferromagnetic coupling to dense stripe domains consisting of periodically up and down domains perpendicular to the surface of the film. The configuration of the stripe domains was confirmed with magnetic force microscopy images. When a longitudinal magnetic field was applied, the size of the stripe domain was reduced. While for a transverse field, the domain structure became tilted and zigzagged, but no in-plane magnetic anisotropy was noted. When the magnetic field was increased to values above the saturation magnetic field, H_S = 2.5 kOe, the domain structure disappeared.

Original language	English
Pages (from-to)	688-690
Number of pages	3
Journal	Current Applied Physics
Volume	9
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2008.06.009
Publication status	Published - 2009 May

Bibliographical note

Funding Information:
This work was supported by the Sogang University Research Grant of 200810017, by a Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2008-531-C00028 and KRF-2005-070-C00053), and by Grant M10500000105-05J0000-10510 from the National Research Laboratory Program of the Korea Science and Engineering Foundation.

Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.

Keywords

Antiferromagnetic coupling
CoFeSiB thin film
Dense stripe domain
Nanocrystalline

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2008.06.009

Cite this

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title = "Dense stripe domains in a nanocrystalline CoFeSiB thin film",

abstract = "We recently reported a possible antiferromagnetically coupled phase in a Co-rich CoFeSiB thin film, that had a partially nanocrystalline Co phase in an amorphous CoFeSiB matrix. Although an amorphous CoFeSiB film should show a ferromagnetic behavior, we observed an antiferromagnetic coupling associated with a nanocrystalline Co phase in the hysteresis-loop measurements of Co-rich CoFeSiB thin films. We ascribed the observed antiferromagnetic coupling to dense stripe domains consisting of periodically up and down domains perpendicular to the surface of the film. The configuration of the stripe domains was confirmed with magnetic force microscopy images. When a longitudinal magnetic field was applied, the size of the stripe domain was reduced. While for a transverse field, the domain structure became tilted and zigzagged, but no in-plane magnetic anisotropy was noted. When the magnetic field was increased to values above the saturation magnetic field, HS = 2.5 kOe, the domain structure disappeared.",

keywords = "Antiferromagnetic coupling, CoFeSiB thin film, Dense stripe domain, Nanocrystalline",

author = "Jungbum Yoon and Park, {Seung young} and Younghun Jo and Jung, {Myung Hwa} and You, {Chun Yeol} and Taewan Kim and Rhee, {Jang Roh} and Kim, {Young Keun}",

note = "Funding Information: This work was supported by the Sogang University Research Grant of 200810017, by a Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2008-531-C00028 and KRF-2005-070-C00053), and by Grant M10500000105-05J0000-10510 from the National Research Laboratory Program of the Korea Science and Engineering Foundation. Copyright: Copyright 2009 Elsevier B.V., All rights reserved.",

year = "2009",

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doi = "10.1016/j.cap.2008.06.009",

language = "English",

volume = "9",

pages = "688--690",

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AU - Yoon, Jungbum

AU - Park, Seung young

AU - Jo, Younghun

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AU - You, Chun Yeol

AU - Kim, Taewan

AU - Rhee, Jang Roh

AU - Kim, Young Keun

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PY - 2009/5

Y1 - 2009/5

N2 - We recently reported a possible antiferromagnetically coupled phase in a Co-rich CoFeSiB thin film, that had a partially nanocrystalline Co phase in an amorphous CoFeSiB matrix. Although an amorphous CoFeSiB film should show a ferromagnetic behavior, we observed an antiferromagnetic coupling associated with a nanocrystalline Co phase in the hysteresis-loop measurements of Co-rich CoFeSiB thin films. We ascribed the observed antiferromagnetic coupling to dense stripe domains consisting of periodically up and down domains perpendicular to the surface of the film. The configuration of the stripe domains was confirmed with magnetic force microscopy images. When a longitudinal magnetic field was applied, the size of the stripe domain was reduced. While for a transverse field, the domain structure became tilted and zigzagged, but no in-plane magnetic anisotropy was noted. When the magnetic field was increased to values above the saturation magnetic field, HS = 2.5 kOe, the domain structure disappeared.

AB - We recently reported a possible antiferromagnetically coupled phase in a Co-rich CoFeSiB thin film, that had a partially nanocrystalline Co phase in an amorphous CoFeSiB matrix. Although an amorphous CoFeSiB film should show a ferromagnetic behavior, we observed an antiferromagnetic coupling associated with a nanocrystalline Co phase in the hysteresis-loop measurements of Co-rich CoFeSiB thin films. We ascribed the observed antiferromagnetic coupling to dense stripe domains consisting of periodically up and down domains perpendicular to the surface of the film. The configuration of the stripe domains was confirmed with magnetic force microscopy images. When a longitudinal magnetic field was applied, the size of the stripe domain was reduced. While for a transverse field, the domain structure became tilted and zigzagged, but no in-plane magnetic anisotropy was noted. When the magnetic field was increased to values above the saturation magnetic field, HS = 2.5 kOe, the domain structure disappeared.

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Dense stripe domains in a nanocrystalline CoFeSiB thin film

Abstract

Bibliographical note

Keywords

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