Spectrum of normal waves in one-dimensional magnonic crystals

Autor:	N. Yu. Grigoryeva, B. A. Kalinikos
Rok vydání:	2014
Předmět:	Crystal Classical mechanics Materials science Solid-state physics Condensed matter physics Spin wave Simple (abstract algebra) Dispersion relation Spectrum (functional analysis) Modulation (music) Mode (statistics) Condensed Matter Physics Electronic Optical and Magnetic Materials
Zdroj:	Physics of the Solid State. 56:2191-2198
ISSN:	1090-6460 1063-7834
DOI:	10.1134/s1063783414110109
Popis:	A general theory of the spectrum of normal waves propagating in magnetic structures with periodically modulated parameters has been developed. Based on the method of tensorial Green’s functions, spin-wave mode approach, and Floquet-Bloch theorem, a general form of the dispersion relation has been obtained for dipole-exchange spin waves propagating in a one-dimensional magnonic crystal formed by an arbitrary spatially periodic modulation of all magnetic and geometric parameters in the Maxwell’s equations and the Landau-Lifshitz equation. An original method has been proposed for taking into account an arbitrary profile of the modulation of the chosen parameters. The efficiency of the presented theory has been demonstrated using a simple example of the description of an experimental spectrum of a dynamic magnonic crystal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d57468a2e01f509cd80d763c3e6a8f19 https://doi.org/10.1134/s1063783414110109 Zobrazit plný text záznamu Full text from SpringerLink