Magnetism

Effect of the number of nanodisks in two-dimensional arrays on magnetization reversal processes

M. E. Stebliy^a, A. G. Kolesnikov^a, A. V. Ognev^ab, A. S. Samardak^ab, L. A. Chebotkevich<sup>ab

a</sup> Far Eastern Federal University, Vladivostok
^b Institute for Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok

Abstract: The magnetic properties of nanodisks packed into square arrays with various numbers of elements in the face have been studied. It has been shown that the vortex nucleation field oscillates with increasing number of nanodisks; the oscillation behavior depends on the nanodisk thickness. The synchronism of the vortex state formation varies with increasing number of nanodisks. The effect of the magnetostatic interaction of nanodisks on the critical fields of magnetization reversal has been estimated for the cases of vortex and single-domain states.

Received: 08.07.2012
Accepted: 24.09.2012

 English version: Physics of the Solid State, 2013, 55:4, 768–772

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