Title: Magnetization Reversal Characteristics in NiFe Elliptical Ring Arrays
Authors: Chang, Liang-Juan
Chen, Kuan-Yu
Lin, Lu-Kui
Yao, Yeong Der
Lin, Pang
Lee, Shang Fan
Department of Materials Science and Engineering
Keywords: Magnetic films;magnetooptic Kerr effect
Issue Date: 1-Jun-2010
Abstract: The magnetization reversal processes of single-layer nanoscale elliptical ring arrays are examined. The magnetic field was applied parallel or perpendicular to the long axis. The magnetization hysteresis loops showed a simultaneous-reversal single-step transition or two-step transition involving flux closure vortex states. For various aspect ratios and thicknesses, the transition between single-step and double-step magnetization reversals was measured to form phase diagrams. Simulations of the magnetization reversal behavior agreed with our results.
URI: http://dx.doi.org/10.1109/TMAG.2010.2040593
ISSN: 0018-9464
DOI: 10.1109/TMAG.2010.2040593
Volume: 46
Issue: 6
Begin Page: 1975
End Page: 1977
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