Magnetooptical kerr spectrometer for 1.2-5.9 ev region and its application to fept/pt multilayers

Katsuaki Sato, Hidetoshi Hongu, Hiroshi Ikekame, Yasuhiro Tosaka, Masato Watanabe, Koki Takanashi, Hiroyasu Fujimori

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The apparatus for measurement of magnetooptical spectra using a polarization modulation technique has been improved to extend the short-wavelength limit to about 200 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 magnetooptical Kerr rotation and Kerr ellipticity of FePt/Pt multilayers, as well as of FePt alloys of different compositions were evaluated for photon energies between 1.2 and 5.9 eV.

Original languageEnglish
Pages (from-to)989-995
Number of pages7
JournalJapanese journal of applied physics
Volume32
Issue number8 R
DOIs
Publication statusPublished - 1993 Feb

Keywords

  • FePt/Pt multilayer
  • Kerr ellipticity
  • Kerr rotation
  • Magnetooptical spectrum
  • Polarization modulation tech-nique
  • Rochon prism
  • Ultraviolet wavelength

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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