Ab initio calculation of the reflectance anisotropy of GaAs (110): the role of nonlocal polarizability and local fields

Paul Leonardus de Boeij, P.L. de Boeij, Christianus M.J. Wijers

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We demonstrate that the description of the optical reflectance anisotropy of GaAs(110) requires a complete microscopic treatment of both surface and bulk, which is feasible in the discrete cellular method. This method is an extension of standard discrete dipole calculations and accounts for non-locality in the electro-dynamical and quantum-mechanical interactions through the use of both real space local fields and ab-initio nonlocal polarizabilities. The results of our calculations are in excellent agreement with experiment and we show that the anisotropy is surface induced.
Original languageUndefined
Pages (from-to)264-270
Number of pages7
JournalPhysics letters A
Issue number272
Publication statusPublished - 2000


  • METIS-129090
  • IR-74345

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