The magneto-optical Kerr effect of multilayers Fe/Pt and Co/Pt

In this communication, the magneto-optical polar Kerr rotation spectra of multilayers Fe/Pt and Co/Pt are calculated based on two different assumptions. First, the spin polarization of the Pt layer is assumed to be negligible. The calculated results for Fe/Pt and Co/Pt multilayers with dCo(Fe)/dPt=1...

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Bibliographic Details
Published in:Journal of applied physics 1993-01, Vol.73 (2), p.986-988
Main Authors: Zhou, Shiming, Zhai, Hongru, Song, Jingtao, Zhang, Hongyan
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Metals. Metallurgy
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
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Summary:In this communication, the magneto-optical polar Kerr rotation spectra of multilayers Fe/Pt and Co/Pt are calculated based on two different assumptions. First, the spin polarization of the Pt layer is assumed to be negligible. The calculated results for Fe/Pt and Co/Pt multilayers with dCo(Fe)/dPt=1 showed the magneto-optical Kerr rotation in the region from 300 to 800 nm increased with increasing modulation wavelength, which is opposite to experimental results. Second, the Pt layer is assumed to be polarized and has a direct contribution to Kerr rotation in the multilayers. The results agree with experiments qualitatively. It is found that the spin polarization of the Pt layer increases with decreasing Pt layer thickness.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.353313