Magnetization reversal in nanostructured permalloy rings

Mei Feng Lai; Ching Ray Chang; Zung Hang Wei; J. C. Wu

doi:10.1109/INTMAG.2002.1000798

Magnetization reversal in nanostructured permalloy rings

Mei Feng Lai, Ching Ray Chang, Zung Hang Wei, J. C. Wu

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Recently, nanostructured rings have attracted much attention in the application of MRAM design because the shape anisotropy makes it easier to generate a closure flux loop spin configuration, which avoids the field leakage and therefore enhances the data storage density. A Permalloy ring with the size of 187.5 nm outer diameter, 112.5 nm inner diameter, and 30nm thickness has been studied by means of micromagnetic simulation. The authors show the hysteresis loop of the ring from our simulation result, with schematic pictures used to represent the stable states I, II, and III of the plateaus.

Original language	English
Title of host publication	INTERMAG Europe 2002 - IEEE International Magnetics Conference
Editors	J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	0780373650, 9780780373655
DOIs	https://doi.org/10.1109/INTMAG.2002.1000798
Publication status	Published - 2002 Jan 1
Event	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands Duration: 2002 Apr 28 → 2002 May 2

Publication series

Name	INTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country	Netherlands
City	Amsterdam
Period	02-04-28 → 02-05-02

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Surfaces, Coatings and Films

Access to Document

10.1109/INTMAG.2002.1000798

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Lai, M. F., Chang, C. R., Wei, Z. H., & Wu, J. C. (2002). Magnetization reversal in nanostructured permalloy rings. In J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, J. De Boeck, & R. Wood (Eds.), INTERMAG Europe 2002 - IEEE International Magnetics Conference [1000798] (INTERMAG Europe 2002 - IEEE International Magnetics Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1000798

Lai, Mei Feng ; Chang, Ching Ray ; Wei, Zung Hang ; Wu, J. C. / Magnetization reversal in nanostructured permalloy rings. INTERMAG Europe 2002 - IEEE International Magnetics Conference. editor / J. Fidler ; B. Hillebrands ; C. Ross ; D. Weller ; L. Folks ; E. Hill ; M. Vazquez Villalabeitia ; J. A. Bain ; Jo De Boeck ; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

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Lai, MF, Chang, CR, Wei, ZH & Wu, JC 2002, Magnetization reversal in nanostructured permalloy rings. in J Fidler, B Hillebrands, C Ross, D Weller, L Folks, E Hill, M Vazquez Villalabeitia, JA Bain, J De Boeck & R Wood (eds), INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1000798, INTERMAG Europe 2002 - IEEE International Magnetics Conference, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 02-04-28. https://doi.org/10.1109/INTMAG.2002.1000798

Magnetization reversal in nanostructured permalloy rings. / Lai, Mei Feng; Chang, Ching Ray; Wei, Zung Hang; Wu, J. C.

INTERMAG Europe 2002 - IEEE International Magnetics Conference. ed. / J. Fidler; B. Hillebrands; C. Ross; D. Weller; L. Folks; E. Hill; M. Vazquez Villalabeitia; J. A. Bain; Jo De Boeck; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. 1000798 (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - Recently, nanostructured rings have attracted much attention in the application of MRAM design because the shape anisotropy makes it easier to generate a closure flux loop spin configuration, which avoids the field leakage and therefore enhances the data storage density. A Permalloy ring with the size of 187.5 nm outer diameter, 112.5 nm inner diameter, and 30nm thickness has been studied by means of micromagnetic simulation. The authors show the hysteresis loop of the ring from our simulation result, with schematic pictures used to represent the stable states I, II, and III of the plateaus.

AB - Recently, nanostructured rings have attracted much attention in the application of MRAM design because the shape anisotropy makes it easier to generate a closure flux loop spin configuration, which avoids the field leakage and therefore enhances the data storage density. A Permalloy ring with the size of 187.5 nm outer diameter, 112.5 nm inner diameter, and 30nm thickness has been studied by means of micromagnetic simulation. The authors show the hysteresis loop of the ring from our simulation result, with schematic pictures used to represent the stable states I, II, and III of the plateaus.

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Lai MF, Chang CR, Wei ZH, Wu JC. Magnetization reversal in nanostructured permalloy rings. In Fidler J, Hillebrands B, Ross C, Weller D, Folks L, Hill E, Vazquez Villalabeitia M, Bain JA, De Boeck J, Wood R, editors, INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc. 2002. 1000798. (INTERMAG Europe 2002 - IEEE International Magnetics Conference). https://doi.org/10.1109/INTMAG.2002.1000798