Abstract
The behavior of the magneto-optic Kerr effect is simulated for ultrathin Fe/Au overlayers and superlattices with magnetization direction varying from polar to transverse configurations. The simulations are based on a general macroscopic formalism, introduced previously, that can treat arbitrary directions of the magnetization, and that utilizes tabulated bulk optical and magneto-optical parameters. Simulations for Co overlayers on Cu are also presented and compared to published transverse Kerr effect data for monolayer-range Co/Cu(100). Transverse Kerr effect measurements at the He-Ne wavelength are presented for a series of ∼ 500 Å thick, sputtered Fe/Mo superlattices, whose component layer thicknesses are fixed at 25 Å of Fe, and range from 4 to 36 Å for the Mo layers. The Co/Cu and Fe/Mo data are compared to simulation to evaluate the applicability of the macroscopic approach to describe the ultrathin regime.
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