Journal of Korean Vacuum Science & Technology

The Korean Vacuum Society (한국진공학회)
권호 표지

Magneto-optical and optical properties of Fe-Au alloy films in a wide composition range

  • Hyun, Y.H. (Dept. of Physics, Hanyang University) ;
  • Kim, C.O. (Dept. of Physics, Hanyang University) ;
  • Lee, Y.P. (Dept. of Physics, Hanyang University) ;
  • Kudryavtsev, Y.V. (Institute of Metal Physics) ;
  • Gontarz, R. (Institute of Molecular Physics) ;
  • Kim, K.W. (Dept. Physics, Sunmoon University)
  • Published : 2001.12.01
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Abstract

Fe-Au alloys are characterized by the complete solubility, and exhibit an fcc-bcc structural transformation at the Fe-rich side. The magneto-optical(equatorial Ken effect : EKE) and optical properties of Fe$\_$1-x/Aux (0 < x < 1) were investigated in the 0.5 - 5.0 eV energy range. The x-ray diffraction study shows the structural fcc-bcc transformation about 80 at. % of Fe. Noticeable changes in the optical properties caused by the fcc-bcc structural transformation was observed. The shape and intensity of the EKE spectra as well as the field dependence of the magneto-optical response were also significantly changed. It is thought that these changes are mainly comes from the induced magnetic moment in Au(and/or the emhanced magnetic moment of Fe). The nature of the prominent structure observed in the UV range of the magneto-optical Ken effect of Au/Fe multilayered films are disscussed in connection with the above results.

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