Title :
Ferromagnetic resonance in arrays of anisotropic magnetic nanoparticles on hexagonal lattice
Author :
Mironov, V.L. ; Skorohodov, Evgeny V. ; Ermolaeva, O.L.
Author_Institution :
Inst. for Phys. of Microstructures, Nizhny Novgorod, Russia
Abstract :
We consider the effects of magnetostatic interaction and ferromagnetic resonance in a frustrated system of anisotropic ferromagnetic nanoparticles packed in a two-dimensional lattice with hexagonal symmetry (artificial spin ice). It is demonstrated, that in an array of interacting particles there are two stable states with a quasi-homogeneous magnetic moments configuration and with a zero magnetic moment. It is shown that the spectrum of ferromagnetic resonance in such system strongly depends on the degree of interaction and the spatial configuration of the magnetic moments.
Keywords :
cobalt alloys; ferromagnetic resonance; iron alloys; magnetic anisotropy; magnetic moments; magnetic particles; nanomagnetics; nanoparticles; Co60Fe40; anisotropic ferromagnetic nanoparticle arrays; artificial spin ice; ferromagnetic resonance spectrum; hexagonal symmetry; interacting particle array; magnetostatic interaction; quasihomogeneous magnetic moment configuration; stable states; two-dimensional hexagonal lattice; Lattices; Magnetic moments; Magnetic resonance; Magnetic resonance imaging; Magnetostatics; Perpendicular magnetic anisotropy;
Conference_Titel :
Microwave and Telecommunication Technology (CriMiCo), 2012 22nd International Crimean Conference
Conference_Location :
Sevastopol, Crimea
Print_ISBN :
978-1-4673-1199-1
