Analysis of magnetic properties in patterned micro-NiFe elements with micro-MOKE and micromagnetics

K. C. Kim; Y. G. Yoo; W. S. Cheong; J. D. Suh; C. S. Lee; Y. J. Song; C. G. Kim

doi:10.1002/pssa.200304615

Analysis of magnetic properties in patterned micro-NiFe elements with micro-MOKE and micromagnetics

K. C. Kim, Y. G. Yoo, W. S. Cheong, J. D. Suh, C. S. Lee, Y. J. Song, C. G. Kim

Department of Physics and Chemistry

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

Abstract

Magnetic properties of a patterned micro-NiFe element were analyzed with micro-MOKE and micromagnetics. Patterned 8 μm × 16 μm NiFe elements have higher coercive field, H_c = 1.9 Oe, for the hard axis than that, H_c = 0.2 Oe, of a 5 mm diameter disk NiFe sample. The magnetization reversal processes have been investigated with the micromagnetic simulation for the various applied field directions. The increase of coercive field in patterned micro-NiFe elements can be attributed to the large shape anisotropy and pinned spins along the edges. Total anisotropy of a 8 μm × 16 μm NiFe sample was about 50 Oe. The magnetization reversal field of pinned spins along the edges in patterned micro-NiFe sample was about 500 Oe.

Original language	English
Pages (from-to)	1871-1874
Number of pages	4
Journal	Physica Status Solidi (A) Applied Research
Volume	201
Issue number	8
DOIs	https://doi.org/10.1002/pssa.200304615
State	Published - Jun 2004

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title = "Analysis of magnetic properties in patterned micro-NiFe elements with micro-MOKE and micromagnetics",

abstract = "Magnetic properties of a patterned micro-NiFe element were analyzed with micro-MOKE and micromagnetics. Patterned 8 μm × 16 μm NiFe elements have higher coercive field, Hc = 1.9 Oe, for the hard axis than that, Hc = 0.2 Oe, of a 5 mm diameter disk NiFe sample. The magnetization reversal processes have been investigated with the micromagnetic simulation for the various applied field directions. The increase of coercive field in patterned micro-NiFe elements can be attributed to the large shape anisotropy and pinned spins along the edges. Total anisotropy of a 8 μm × 16 μm NiFe sample was about 50 Oe. The magnetization reversal field of pinned spins along the edges in patterned micro-NiFe sample was about 500 Oe.",

author = "Kim, {K. C.} and Yoo, {Y. G.} and Cheong, {W. S.} and Suh, {J. D.} and Lee, {C. S.} and Song, {Y. J.} and Kim, {C. G.}",

year = "2004",

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doi = "10.1002/pssa.200304615",

language = "English",

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T1 - Analysis of magnetic properties in patterned micro-NiFe elements with micro-MOKE and micromagnetics

AU - Kim, K. C.

AU - Yoo, Y. G.

AU - Cheong, W. S.

AU - Suh, J. D.

AU - Lee, C. S.

AU - Song, Y. J.

AU - Kim, C. G.

PY - 2004/6

Y1 - 2004/6

N2 - Magnetic properties of a patterned micro-NiFe element were analyzed with micro-MOKE and micromagnetics. Patterned 8 μm × 16 μm NiFe elements have higher coercive field, Hc = 1.9 Oe, for the hard axis than that, Hc = 0.2 Oe, of a 5 mm diameter disk NiFe sample. The magnetization reversal processes have been investigated with the micromagnetic simulation for the various applied field directions. The increase of coercive field in patterned micro-NiFe elements can be attributed to the large shape anisotropy and pinned spins along the edges. Total anisotropy of a 8 μm × 16 μm NiFe sample was about 50 Oe. The magnetization reversal field of pinned spins along the edges in patterned micro-NiFe sample was about 500 Oe.

AB - Magnetic properties of a patterned micro-NiFe element were analyzed with micro-MOKE and micromagnetics. Patterned 8 μm × 16 μm NiFe elements have higher coercive field, Hc = 1.9 Oe, for the hard axis than that, Hc = 0.2 Oe, of a 5 mm diameter disk NiFe sample. The magnetization reversal processes have been investigated with the micromagnetic simulation for the various applied field directions. The increase of coercive field in patterned micro-NiFe elements can be attributed to the large shape anisotropy and pinned spins along the edges. Total anisotropy of a 8 μm × 16 μm NiFe sample was about 50 Oe. The magnetization reversal field of pinned spins along the edges in patterned micro-NiFe sample was about 500 Oe.

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DO - 10.1002/pssa.200304615

M3 - Article

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Analysis of magnetic properties in patterned micro-NiFe elements with micro-MOKE and micromagnetics

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