Magnetization processes in single domain elliptical permalloy thin films

Zung Hang Wei; Mei Feng Lai; Ching Ray Chang; N. A. Usov; J. C. Wu; Jun Yang Lai

doi:10.1016/j.jmmm.2003.11.326

Magnetization processes in single domain elliptical permalloy thin films

Zung Hang Wei, Mei Feng Lai, Ching Ray Chang, N. A. Usov, J. C. Wu, Jun Yang Lai

Department of Physics

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

We use the micromagnetic simulation to investigate the reversible and irreversible magnetization processes of the single-domain elliptical permalloy thin films. The reversible magnetization curve without hysteresis obtained by magnetizing the single-domain elliptical permalloy thin film along the hard axis is almost linear as are single-domain ellipsoidal particles. For irreversible processes with hysteresis, the switching field of the ellliptical thin film is reduced compared with that predicted by the Stoner-Wohlfarth model due to the occurrence of non-uniform reversal.

Original language	English
Pages (from-to)	e563-e564
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.11.326
Publication status	Published - 2004 May 1

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Wei, Z. H., Lai, M. F., Chang, C. R., Usov, N. A., Wu, J. C., & Lai, J. Y. (2004). Magnetization processes in single domain elliptical permalloy thin films. Journal of Magnetism and Magnetic Materials, 272-276(SUPPL. 1), e563-e564. https://doi.org/10.1016/j.jmmm.2003.11.326

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AU - Wei, Zung Hang

AU - Lai, Mei Feng

AU - Chang, Ching Ray

AU - Usov, N. A.

AU - Wu, J. C.

AU - Lai, Jun Yang

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AB - We use the micromagnetic simulation to investigate the reversible and irreversible magnetization processes of the single-domain elliptical permalloy thin films. The reversible magnetization curve without hysteresis obtained by magnetizing the single-domain elliptical permalloy thin film along the hard axis is almost linear as are single-domain ellipsoidal particles. For irreversible processes with hysteresis, the switching field of the ellliptical thin film is reduced compared with that predicted by the Stoner-Wohlfarth model due to the occurrence of non-uniform reversal.

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10.1016/j.jmmm.2003.11.326