Abstract
We present theoretical studies of the optical anisotropy spectra of GaAs(001) surfaces with different reconstructions at growth temperatures. The Ga-rich (4×2) missing-dimer surface, three different phases (α, β, and γ) of the As-rich (2×4) surface, and an As-rich c(4×4) surface are considered. Total energy calculations within a nearest-neighbor tight-binding model are performed to determine the surface geometry for each reconstruction considered. The difference between reflectance spectra with [110] and [1̄10] polarization for these surfaces is analyzed and compared to available data.
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Schedule a callMore From: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
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