Structure and optical properties of the Sb‐stabilized GaSb(001) surface

Hogan, Conor; Magri, Rita; Sole, R. Del

doi:10.1002/pssc.200982499

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2010

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“…[21]). A more complete discussion of the importance of spin-orbit and higher order effects will be given elsewhere [22].…”

Section: Optical Spectramentioning

confidence: 99%

Optical properties of GaSb(001)‐c(2 × 6): The role of surface antisite defects

Hogan

Magri

Sole

2010

Physica Status Solidi (b)

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We consider the formation of surface antisite defects on a previously proposed model for the GaSb(001)-c(2 Â 6) surface. Based on ab initio total energy calculations, we show how these defects stabilize the otherwise metallic surface and how their formation is driven by the excess charge associated with the Sbrich surface conditions. The surface-sensitive optical technique of reflectance anisotropy spectroscopy is shown to be crucial for detecting the defects, and computation of spectra yields a good agreement with experiment when defects are included in the surface reconstruction.

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“…[21]). A more complete discussion of the importance of spin-orbit and higher order effects will be given elsewhere [22].…”

Section: Optical Spectramentioning

confidence: 99%