2000•IEEE Transactions on MagneticsRequires access

Magnetic domain structure and magnetic reversal in elliptical dot arrays

P. Vavassori, O. Donzelli, Luca Callegaro, M. Grimsditch, V. Metluskko

Abstract

We present a joint magnetic force microscopy analysis and magneto-optical Kerr measurements of dot arrays that contain elliptical elements with different shape. In particular we have investigated the influence of the element shape on the domain structure in the remanent state. The single- or multiple domain nature of the magnetization at remanence is shown to depend strongly on how rounded or pointed each element is.

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Key concepts: Remanence, Magnetic domain, Magnetic force microscope, Single domain, Condensed matter physics, Materials science, Magnetization, Domain (mathematical analysis)