Vortices in two-dimensional nanorings studied by means of the dynamical matrix method
作者： S. Mamica
DOI: 10.1063/1.4932355
关键词: Dipole 、 Condensed matter physics 、 Normal mode 、 Magnetic structure 、 Matrix method 、 Spin wave 、 Magnetic moment 、 Physics 、 Vortex state 、 Magnetic nanoparticles
摘要: This paper concerns an investigation of the spin wave excitations in magnetic nanoparticles. We provide a detailed derivation theoretical method for determination normal modes confined systems based on discrete lattice moments. The is damping-free Landau–Lifshitz equation and general enough to be utilized system any dimensionality, structure, shape, size. As example we explore influence competition between exchange dipolar interactions spectrum as well stability vortex state two-dimensional nanorings. show lowest-frequency mode indicative dipolar-to-exchange iterations ratio. also study behavior fundamental present both, discreteness ratio, its hybridization with azimuthal modes. complete selective review spi...
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