A comparative study of FMR and Brillouin light scattering on amorphous Fe40Ni40B20

Autor:	A. Kurn, Zdeněk Frait, J. F. Cochran
Rok vydání:	2000
Předmět:	Materials science Amorphous metal Condensed matter physics business.industry Magnetism Condensed Matter Physics Ferromagnetic resonance Light scattering Electronic Optical and Magnetic Materials Amorphous solid Brillouin zone Magnetization Light intensity Optics business
Zdroj:	Journal of Magnetism and Magnetic Materials. 210:42-48
ISSN:	0304-8853
DOI:	10.1016/s0304-8853(99)00628-9
Popis:	It is shown that magnetic surface mode frequencies in the amorphous ferromagnet Fe 40 Ni 40 B 20 measured using Brillouin light scattering depend upon the incident laser light intensity: presumably due to local heating of the specimen due to the concentration of the light flux into a focal spot only a few microns in diameter. Surface mode frequencies extrapolated to zero light intensity are shown to be consistent with magnetic parameters measured using ferromagnetic resonance at 35.731 GHz to within ±0.5 GHz for specimens of amorphous Fe 40 Ni 40 B 20 . 0.5 GHz corresponds to a change of 0.17 kG in the saturation magnetization, 4π M s .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::89bf320b622dd2373fd735f2d3ef8485 https://doi.org/10.1016/s0304-8853(99)00628-9 Zobrazit plný text záznamu Full Text from ScienceDirect