Complex magneto-optical Kerr rotation of Fe,FeCo/Cu multilayer films

The complex magneto-optical Kerr rotation spectra of Fe/Cu and FeCo/Cu bilayers and compositionally modulated films (CMF) were studied experimentally and theoretically. In the bilayers, an enhancement of Kerr ellipticity εk by a factor of 5 was observed at long wavelength side, while the Kerr rotati...

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Veröffentlicht in:	Journal of applied physics 1993-09, Vol.74 (5), p.3470-3474
Hauptverfasser:	XU, Y. B, JIN, Q. Y, ZHAI, Y, LU, M, MIAO, Y. Z, BIE, Q. S, ZHAI, H. R
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetooptical effects Metals and metallic alloys Metals. Metallurgy Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Optical properties of specific thin films Physics
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Zusammenfassung:	The complex magneto-optical Kerr rotation spectra of Fe/Cu and FeCo/Cu bilayers and compositionally modulated films (CMF) were studied experimentally and theoretically. In the bilayers, an enhancement of Kerr ellipticity εk by a factor of 5 was observed at long wavelength side, while the Kerr rotation θk can only be enhanced by a factor of 2 around the plasma edge of Cu. In the CMFs, εk was enhanced by 60% but no θk enhancement was observed. Theoretical analyses showed that both the magnitude of effective ε̃xye and the magnitude and signs of effective Ae and Be are important for magneto-optical enhancement.
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.354523