Magneto-optical Kerr spectrometer for 1.2-5.9 eV region and its application to FePt/Pt multilayers

An apparatus for measurement of magneto-optical spectra using a polarization modulation technique has been improved to extend the short-wavelength limit to approx200 nm in the ultraviolet range. Short-wavelength characteristics of the light source, the focusing system including mirrors and lenses, t...

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Published inJpn. J. Appl. Phys. 1 Vol. 32; no. 2; pp. 989 - 995
Main Authors Sato, K, Hongu, H, Ikekame, H, Tosaka, Y, Watanabe, M, Takanashi, K, Fujimori, H
Format Journal Article
LanguageEnglish
Published 01.02.1993
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Summary:An apparatus for measurement of magneto-optical spectra using a polarization modulation technique has been improved to extend the short-wavelength limit to approx200 nm in the ultraviolet range. Short-wavelength characteristics of the light source, the focusing system including mirrors and lenses, the monochromator, the polarizer and the analyzer were improved. The techniques of calibration for Kerr rotation and ellipticity were also refined. With the use of the newly designed system, the magneto optical Kerr rotation and Kerr ellipticity of FePt/Pt multilayers, as well as of FePt alloys of different compositions, were evaluated for photon energies of 1.2-5.9 eV.
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ISSN:0021-4922