Interlayer exchange coupling in epitaxial Fe/Cr/Fe/Ag/GaAs(100) structures
作者： R. J. Hicken , C. Daboo , M. Gester , A. J. R. Ives , S. J. Gray
DOI: 10.1063/1.360488
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摘要: The interlayer exchange coupling has been investigated in epitaxial Fe(20 A)/Cr/Fe(20 A)/Ag/GaAs(100) structures that contain a wedge‐shaped (0–40 A) Cr layer. Longitudinal and polar magneto‐optical Kerr‐effect (MOKE) Brillouin light‐scattering measurements have combined to determine values for the relevant anisotropy constants both bilinear biquadratic strengths. phase period of oscillations are found agree well with those reported by other researchers while total strength is be reduced. This reduction presumably due presence structural imperfections our samples, results may therefore use testing some recently proposed extrinsic mechanisms. Specifically, we find thicknesses studied samples varies as d−1.4Cr where dCr thickness We also present show how ultr...
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