Extinction of Magnetostatic Modes in Ferrospinel Films

Autor:	L. A. Mitlina, Gregori Saidashevich Badrtdinov
Rok vydání:	2014
Předmět:	Materials science Absorption spectroscopy Magnetic moment Condensed matter physics business.industry General Physics and Astronomy Molar absorptivity Magnetic field Condensed Matter::Materials Science Wavelength Optics Ferrite (magnet) Group velocity Anisotropy business
Zdroj:	Russian Physics Journal. 57:115-123
ISSN:	1573-9228 1064-8887
DOI:	10.1007/s11182-014-0215-9
Popis:	Absorption spectra of ferrospinel films synthesized by the method of chemical transport reactions are considered. Using an EPR spectrometer, it is demonstrated that additional absorption peaks are recorded in the absorption spectra of manganese and magnesium-manganese ferrite films magnetized parallel to their surface. Interpreting these peaks as magnetostatic modes, the wave number, group velocity, and extinction coefficient are retrieved from experimental values of the saturation magnetization, crystallographic anisotropy constant, and magnetic field of the observed modes. The common effects typical of the ferrospinel films are frequency oscillations of the surface mode extinction. Dependences of the extinction oscillation pattern on the surface anisotropy and wavelength of magnetic moment oscillations are established.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::489d4fca06127a665b87b5cfe279e383 https://doi.org/10.1007/s11182-014-0215-9 Zobrazit plný text záznamu Plný text ve formátu PDF