Edge Shape Effect on Switching Behavior in a Small Ferromagnetic Pattern

Abstract:

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Switching behavior and domain structure greatly depends on the edge shape of mesoscopic patterns. In our simulation, permalloy patterns with elliptical and tapered edge need 80% and 50% more switching field, respectively, than a rectangle for the same overall aspect ratio of four. In the switching dynamics, vortex nucleation and its initial location play a great role in deciding switching field. Elliptical and tapered patterns show high magnetic remanence, which is advantageous for non-volatile device application. It is also demonstrated that small control of tapered edge makes it possible to change the switching behavior without the variation of overall aspect ratio.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

911-914

DOI:

10.4028/www.scientific.net/SSP.124-126.911

Citation:

J. H. Kwon et al., "Edge Shape Effect on Switching Behavior in a Small Ferromagnetic Pattern", Solid State Phenomena, Vols. 124-126, pp. 911-914, 2007

Online since:

June 2007

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Price:

$35.00

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