Depth dependence of magnetic properties of Co-based amorphous ribbons

L. Jin; C. G. Kim; S. S. Yoon; D. S. Sun; J. H. Seo; C. O. Kim

Depth dependence of magnetic properties of Co-based amorphous ribbons

L. Jin, C. G. Kim, S. S. Yoon, D. S. Sun, J. H. Seo, C. O. Kim

Department of Physics and Chemistry

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

Abstract

The ribbons were annealed in air in a field of 3 Oe for 8 h at a temperature of 653 K; the microstructure distribution was observed by transmission electron microscopy (TEM). Crystalline grains of 10 nm were observed near the surface of annealed ribbons. After removal of a surface layer of up to 1 μm thick, the ribbons reveal only an amorphous phase. Also, the ribbons were partially etched with a hydrofluoric acid solution in order to investigate magnetic properties. The asymmetric GMI profiles transform into a typical symmetric GMI profile of uniaxial magnetic anisotropy after 1-μm surface etching. In this work, we will discuss the depth dependence of the microstructure and magnetic properties in surface-crystallized Co ₆₆Fe₄Si₁₅B₁₅ amorphous ribbons in terms of domain image observed by MFM and GMI profiles.

Original language	English
Pages (from-to)	S36-S38
Journal	Physics of Metals and Metallography
Volume	100
Issue number	SUPPL. 1
State	Published - 2005

Cite this

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title = "Depth dependence of magnetic properties of Co-based amorphous ribbons",

abstract = "The ribbons were annealed in air in a field of 3 Oe for 8 h at a temperature of 653 K; the microstructure distribution was observed by transmission electron microscopy (TEM). Crystalline grains of 10 nm were observed near the surface of annealed ribbons. After removal of a surface layer of up to 1 μm thick, the ribbons reveal only an amorphous phase. Also, the ribbons were partially etched with a hydrofluoric acid solution in order to investigate magnetic properties. The asymmetric GMI profiles transform into a typical symmetric GMI profile of uniaxial magnetic anisotropy after 1-μm surface etching. In this work, we will discuss the depth dependence of the microstructure and magnetic properties in surface-crystallized Co 66Fe4Si15B15 amorphous ribbons in terms of domain image observed by MFM and GMI profiles.",

author = "L. Jin and Kim, \{C. G.\} and Yoon, \{S. S.\} and Sun, \{D. S.\} and Seo, \{J. H.\} and Kim, \{C. O.\}",

year = "2005",

language = "English",

volume = "100",

pages = "S36--S38",

journal = "Physics of Metals and Metallography",

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T1 - Depth dependence of magnetic properties of Co-based amorphous ribbons

AU - Jin, L.

AU - Kim, C. G.

AU - Yoon, S. S.

AU - Sun, D. S.

AU - Seo, J. H.

AU - Kim, C. O.

PY - 2005

Y1 - 2005

N2 - The ribbons were annealed in air in a field of 3 Oe for 8 h at a temperature of 653 K; the microstructure distribution was observed by transmission electron microscopy (TEM). Crystalline grains of 10 nm were observed near the surface of annealed ribbons. After removal of a surface layer of up to 1 μm thick, the ribbons reveal only an amorphous phase. Also, the ribbons were partially etched with a hydrofluoric acid solution in order to investigate magnetic properties. The asymmetric GMI profiles transform into a typical symmetric GMI profile of uniaxial magnetic anisotropy after 1-μm surface etching. In this work, we will discuss the depth dependence of the microstructure and magnetic properties in surface-crystallized Co 66Fe4Si15B15 amorphous ribbons in terms of domain image observed by MFM and GMI profiles.

AB - The ribbons were annealed in air in a field of 3 Oe for 8 h at a temperature of 653 K; the microstructure distribution was observed by transmission electron microscopy (TEM). Crystalline grains of 10 nm were observed near the surface of annealed ribbons. After removal of a surface layer of up to 1 μm thick, the ribbons reveal only an amorphous phase. Also, the ribbons were partially etched with a hydrofluoric acid solution in order to investigate magnetic properties. The asymmetric GMI profiles transform into a typical symmetric GMI profile of uniaxial magnetic anisotropy after 1-μm surface etching. In this work, we will discuss the depth dependence of the microstructure and magnetic properties in surface-crystallized Co 66Fe4Si15B15 amorphous ribbons in terms of domain image observed by MFM and GMI profiles.

UR - https://www.scopus.com/pages/publications/33644603084

M3 - Article

AN - SCOPUS:33644603084

SN - 0031-918X

VL - 100

SP - S36-S38

JO - Physics of Metals and Metallography

JF - Physics of Metals and Metallography

IS - SUPPL. 1

ER -

Depth dependence of magnetic properties of Co-based amorphous ribbons

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