Magneto-optical spectra in Fe-Au Superlattices modulated by non-integer atomic layers

K. Sato, E. Takeda, M. Akita, S. Mitani, K. Takanashi and H. Fujimori
Proc. Magneto-Optical Recording Symposium, Yamagata October 1997, J. Magn. Soc. Jpn. 22, Suppl. S2 (1998) 193-196

Abstract - Magnetooptical Kerr spectra were measured in [Fe(nML)/Au(nML)]N superlattices with noninteger value of n. Although overall spectral features are similar to those of integer superlattices, clear differences were found in low-energy spectra. Spectra of the off-diagonal conductivity tensor element multiplied by the angular frequency, epsilonxy were calculated. An oscillatory behavior was found in the absolute value at the photon energy of 1.5 eV.