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

fYear

2012

fDate

10-14 Sept. 2012

Firstpage

741

Lastpage

742

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Telecommunication Technology (CriMiCo), 2012 22nd International Crimean Conference

Conference_Location

Sevastopol, Crimea

Print_ISBN

978-1-4673-1199-1

Type

conf

Filename

6336172