Title :
Reversible magnetization variations in large field ranges associated to periodic arrays of antidots
Author :
Gonzalez, Jesus M. ; Chubykalo-Fesenko, Oksana A. ; Garcia-Sanchez, Felipe ; Bruna, Jose M Torres ; Bartolomé, Juan ; Vinuesa, Luis M García
Author_Institution :
Unidad Asociada IMA-ICMM, Madrid, Spain
Abstract :
The remanence configurations and magnetization reversal processes of square arrays of circular antidots lithographed in thin Fe films are analyzed on the framework of a micromagnetic model as a function of the antidot diameter and interantidot distance. From our simulation results, we conclude that the remanence and the global reversal process are determined by inhomogeneous moment structures surrounding the antidots and originated from the magnetostatic energy minimization.
Keywords :
magnetic hysteresis; magnetic moments; magnetisation reversal; micromagnetics; nanostructured materials; quantum dots; remanence; circular antidots; hysteresis process; inhomogeneous moment structure; magnetic nanostructure; magnetization reversal process; magnetostatic energy minimization; micromagnetic model; periodic array; remanence configuration; reversible magnetization; thin Fe film; Couplings; Demagnetization; Magnetic anisotropy; Magnetic separation; Magnetization reversal; Magnetostatics; Micromagnetics; Perpendicular magnetic anisotropy; Remanence; Saturation magnetization; Hysteresis process; magnetic nanostructures; magnetization reversal; micromagnetics;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854890
