As-deposited magnetic states in arrays of rectangular permalloy elements

Mei Feng Lai; Zung Hang Wei; J. C. Wu; Ching Ray Chang; W. Z. Hsieh; Jun Yang Lai

doi:10.1109/TMAG.2004.842130

As-deposited magnetic states in arrays of rectangular permalloy elements

Mei Feng Lai, Zung Hang Wei, J. C. Wu, Ching Ray Chang, W. Z. Hsieh, Jun Yang Lai

Department of Physics

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

5 Citations (Scopus)

Abstract

We study the magnetization configurations of the metastable states including various vortex states and cross-tie states existing in rectangular Permalloy thin films by micromagnetic simulations and by experiments. First, we use the micromagnetic simulation to obtain various stable states in rectangles. In our experiment, we fabricate the array of rectangular thin films with different aspect ratios. Several stable states are obtained in the array, and it is found that when the aspect ratio is close to one, only one vortex state can exist. In large aspect ratios, multivortex and cross-tie states can exist.

Original language	English
Pages (from-to)	944-946
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	41
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2004.842130
Publication status	Published - 2005 Feb 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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AU - Wei, Zung Hang

AU - Wu, J. C.

AU - Chang, Ching Ray

AU - Hsieh, W. Z.

AU - Lai, Jun Yang

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AB - We study the magnetization configurations of the metastable states including various vortex states and cross-tie states existing in rectangular Permalloy thin films by micromagnetic simulations and by experiments. First, we use the micromagnetic simulation to obtain various stable states in rectangles. In our experiment, we fabricate the array of rectangular thin films with different aspect ratios. Several stable states are obtained in the array, and it is found that when the aspect ratio is close to one, only one vortex state can exist. In large aspect ratios, multivortex and cross-tie states can exist.

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