Magneto-Optical Kerr Effect of Compositionally Modulated Co/Pt Films
ZHOU Shiming, ZHAI Hongru, SONG Jingtao*, ZHANG Hongyan, LU Mu, JIANG Shulian
Center of Materials Analysis, Laboratory of Solid State
Microstructures, Nanjing University, Nanjing 210008
*Water conservancy and Electric Power Equipment Factory, Wujiang 215200
Magneto-Optical Kerr Effect of Compositionally Modulated Co/Pt Films
Center of Materials Analysis, Laboratory of Solid State
Microstructures, Nanjing University, Nanjing 210008
*Water conservancy and Electric Power Equipment Factory, Wujiang 215200
Abstract： In this paper the magneto-optical polar Kerr rotation spectra of compositionally modulated films (CMF) Co/Pt are calculated by using Fresnel's equations. For CMF Co/Pt with dCo/dpt=1/2, 1 and 2 the magneto-optical Kerr rotation at any wavelength increases with the increasing modulation wavelength in the wavelength region from 200 to 800nm. For CMF Co/Pt of constant dpt the Kerr rotation increases with dco increasing while of constant dco the Kerr rotation increases with dpt decreasing. From numerical calculations it is suggested that for CMF Co/Pt with small dpt the Pt sublayer is polarized and has a positive contribution to the Kerr rotation of CMF Co/Pt.
1992, Vol. 9 
