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

Boeij de, P.L. and Wijers, C.M.J. (2000) Ab initio calculation of the reflectance anisotropy of GaAs(110): the role of nonlocal polarizability and local fields. Physics Letters A, 272 (4). pp. 264-270. ISSN 0375-9601

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Abstract:	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.
Item Type:	Article
Copyright:	© 2000 Elsevier
Research Group:	Physics of Interfaces and Nanomaterials (PIN)
Link to this item:	http://purl.utwente.nl/publications/74345
Official URL:	http://dx.doi.org/10.1016/S0375-9601(00)00427-8
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