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Scaling of the coercivity with the geometrical parameters in epitaxial Fe antidot arrays
Paz Pérez de Colosía, Elvira and Cebollada Baratas, Federico Alberto and Palomares Simón, Francisco Javier and González, Jesús María and Im, Mi-Young and Fischer, Peter
Scaling of the coercivity with the geometrical parameters in epitaxial Fe antidot arrays.
"Journal of Applied Physics", v. 111
We studied a series of square lattice antidot arrays, with diameter and lattice parameter from hundreds of nanometers to some microns, fabricated using two lithography techniques in epitaxial Fe(001) ﬁlms. The coercivity increase of each array with respect to its base ﬁlm can be scaled to a simple geometric parameter, irrespective of the lithography technique employed. Magnetic transmission x-ray microscopy studies, in arrays fabricated on polycrystalline Fe ﬁlms deposited on silicon nitride membranes, evidenced the propagation of reversed domains from the edges of the arrays, in agreement with the coercivity analysis of the epitaxial arrays and with micromagnetic models.
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