Coercive force calculation of ferromagnetic bilayer

M. H. Park; Y. K. Hong; Terumitsu Tanaka; S. H. Gee; C. Byun

doi:10.1016/j.jmmm.2004.09.143

Coercive force calculation of ferromagnetic bilayer

M. H. Park, Y. K. Hong, Terumitsu Tanaka, S. H. Gee, C. Byun

Research output: Contribution to journal › Article

Abstract

A domain wall structure of a strongly coupled ferromagnetic bilayer was proposed. Based on the proposed domain wall structure, the interface wall width and coercive force of coupled 10 nm thick Co/NiFe and Co/Fe bilayers were calculated by minimizing the Néel wall energy. It was found that the coercive force of the Co/NiFe bilayer linearly decreases with increasing thickness ratio of NiFe to total thickness, followed by a rapid drop when the thickness ratio approaches the unit. A linear relation between coercive force and thickness ratio of Fe to total thickness was found at a given thickness for the Co/Fe bilayer.

Original language	English
Pages (from-to)	83-87
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	286
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jmmm.2004.09.143
Publication status	Published - Feb 1 2005
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Park, M. H., Hong, Y. K., Tanaka, T., Gee, S. H., & Byun, C. (2005). Coercive force calculation of ferromagnetic bilayer. Journal of Magnetism and Magnetic Materials, 286(SPEC. ISS.), 83-87. https://doi.org/10.1016/j.jmmm.2004.09.143

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abstract = "A domain wall structure of a strongly coupled ferromagnetic bilayer was proposed. Based on the proposed domain wall structure, the interface wall width and coercive force of coupled 10 nm thick Co/NiFe and Co/Fe bilayers were calculated by minimizing the N{\'e}el wall energy. It was found that the coercive force of the Co/NiFe bilayer linearly decreases with increasing thickness ratio of NiFe to total thickness, followed by a rapid drop when the thickness ratio approaches the unit. A linear relation between coercive force and thickness ratio of Fe to total thickness was found at a given thickness for the Co/Fe bilayer.",

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AU - Park, M. H.

AU - Hong, Y. K.

AU - Tanaka, Terumitsu

AU - Gee, S. H.

AU - Byun, C.

PY - 2005/2/1

Y1 - 2005/2/1

N2 - A domain wall structure of a strongly coupled ferromagnetic bilayer was proposed. Based on the proposed domain wall structure, the interface wall width and coercive force of coupled 10 nm thick Co/NiFe and Co/Fe bilayers were calculated by minimizing the Néel wall energy. It was found that the coercive force of the Co/NiFe bilayer linearly decreases with increasing thickness ratio of NiFe to total thickness, followed by a rapid drop when the thickness ratio approaches the unit. A linear relation between coercive force and thickness ratio of Fe to total thickness was found at a given thickness for the Co/Fe bilayer.

AB - A domain wall structure of a strongly coupled ferromagnetic bilayer was proposed. Based on the proposed domain wall structure, the interface wall width and coercive force of coupled 10 nm thick Co/NiFe and Co/Fe bilayers were calculated by minimizing the Néel wall energy. It was found that the coercive force of the Co/NiFe bilayer linearly decreases with increasing thickness ratio of NiFe to total thickness, followed by a rapid drop when the thickness ratio approaches the unit. A linear relation between coercive force and thickness ratio of Fe to total thickness was found at a given thickness for the Co/Fe bilayer.

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10.1016/j.jmmm.2004.09.143