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Nonlocal Polarizabilities and the AB Initio Calculation of Surface Optical Properties of Gaas (110)

  • C.M.J. Wijers (a1) and P.L. De Boeij (a2)

Abstract

We have calculated the reflectance anisotropy for the GaAs (110) surface using the discrete cellular method. This method extends the range of application of standard discrete dipole calculations by incorporating nonlocal polarizabilitites. The method adds a second quantum mechanical channel of nonlocality, which turns out to be necessary and yields very good agreement between theory and experiment.

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