Magnetization reversal in nanostructured permalloy rings

Mei Feng Lai; Ching Ray Chang; J. C. Wu; Zung Hang Wei; J. H. Kuo; Jun Yang Lai

doi:10.1109/TMAG.2002.801931

Magnetization reversal in nanostructured permalloy rings

Mei Feng Lai, Ching Ray Chang, J. C. Wu, Zung Hang Wei, J. H. Kuo, Jun Yang Lai

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

14 Citations (Scopus)

Abstract

Three different stable magnetization configurations of soft-type nanostructured permalloy rings are investigated in detail by micromagnetic simulation. During the reversal process, the abrupt change of the hysteresis loop corresponds to the evolution of these states. Beside the quasiuniform and circular states, we find a new pair-vortices state. We compare the magnetic pole density distributions transformed from the simulation patterns with the magnetic force microscopic (MFM) images and find very good agreement between them.

Original language	English
Pages (from-to)	2550-2552
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	38
Issue number	5 I
DOIs	https://doi.org/10.1109/TMAG.2002.801931
Publication status	Published - 2002 Sep 1
Event	2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands Duration: 2002 Apr 28 → 2002 May 2

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2002.801931

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title = "Magnetization reversal in nanostructured permalloy rings",

abstract = "Three different stable magnetization configurations of soft-type nanostructured permalloy rings are investigated in detail by micromagnetic simulation. During the reversal process, the abrupt change of the hysteresis loop corresponds to the evolution of these states. Beside the quasiuniform and circular states, we find a new pair-vortices state. We compare the magnetic pole density distributions transformed from the simulation patterns with the magnetic force microscopic (MFM) images and find very good agreement between them.",

author = "Lai, {Mei Feng} and Chang, {Ching Ray} and Wu, {J. C.} and Wei, {Zung Hang} and Kuo, {J. H.} and Lai, {Jun Yang}",

year = "2002",

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doi = "10.1109/TMAG.2002.801931",

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journal = "IEEE Transactions on Magnetics",

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note = "2002 International Magnetics Conference (Intermag 2002) ; Conference date: 28-04-2002 Through 02-05-2002",

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T1 - Magnetization reversal in nanostructured permalloy rings

AU - Lai, Mei Feng

AU - Chang, Ching Ray

AU - Wu, J. C.

AU - Wei, Zung Hang

AU - Kuo, J. H.

AU - Lai, Jun Yang

PY - 2002/9/1

Y1 - 2002/9/1

N2 - Three different stable magnetization configurations of soft-type nanostructured permalloy rings are investigated in detail by micromagnetic simulation. During the reversal process, the abrupt change of the hysteresis loop corresponds to the evolution of these states. Beside the quasiuniform and circular states, we find a new pair-vortices state. We compare the magnetic pole density distributions transformed from the simulation patterns with the magnetic force microscopic (MFM) images and find very good agreement between them.

AB - Three different stable magnetization configurations of soft-type nanostructured permalloy rings are investigated in detail by micromagnetic simulation. During the reversal process, the abrupt change of the hysteresis loop corresponds to the evolution of these states. Beside the quasiuniform and circular states, we find a new pair-vortices state. We compare the magnetic pole density distributions transformed from the simulation patterns with the magnetic force microscopic (MFM) images and find very good agreement between them.

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M3 - Conference article

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VL - 38

SP - 2550

EP - 2552

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 5 I

T2 - 2002 International Magnetics Conference (Intermag 2002)

Y2 - 28 April 2002 through 2 May 2002

ER -