SURFACE AND NEAR-SURFACE ATOMIC STRUCTURE OF GaAs (110).

Antoine Kahn; E. So; P. Mark; C. B. Duke; R. J. Meyer

doi:10.1116/1.569697

SURFACE AND NEAR-SURFACE ATOMIC STRUCTURE OF GaAs (110).

Antoine Kahn, E. So, P. Mark, C. B. Duke, R. J. Meyer

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Abstract

Low-energy electron diffraction (LEED) intensity-voltage data for a complete set of first-order diffraction beams of the GaAs (110) surface is averaged at constant momentum transfer and compared with kinematical and dynamical model calculations for several surface atomic geometries. The atomic displacements in the surface and first two subsurface layers are obtained via this analysis. The influence of multiple scattering is examined by computing the single and multiple scattering contributions to the intensity-voltage profiles associated with atomic distortions within the first three lattice layers. This procedure allows the identification of the major features of the structure in the LEED-CMTA (constant momentum transfer average) profiles either with multiple scattering effects or with single scattering resonances derived from the lattice geometry.

Original language	English (US)
Pages (from-to)	1223-1228
Number of pages	6
Journal	J VAC SCI TECHNOL
Volume	15
Issue number	4
DOIs	https://doi.org/10.1116/1.569697
State	Published - 1978

All Science Journal Classification (ASJC) codes

General Engineering

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title = "SURFACE AND NEAR-SURFACE ATOMIC STRUCTURE OF GaAs (110).",

abstract = "Low-energy electron diffraction (LEED) intensity-voltage data for a complete set of first-order diffraction beams of the GaAs (110) surface is averaged at constant momentum transfer and compared with kinematical and dynamical model calculations for several surface atomic geometries. The atomic displacements in the surface and first two subsurface layers are obtained via this analysis. The influence of multiple scattering is examined by computing the single and multiple scattering contributions to the intensity-voltage profiles associated with atomic distortions within the first three lattice layers. This procedure allows the identification of the major features of the structure in the LEED-CMTA (constant momentum transfer average) profiles either with multiple scattering effects or with single scattering resonances derived from the lattice geometry.",

author = "Antoine Kahn and E. So and P. Mark and Duke, {C. B.} and Meyer, {R. J.}",

year = "1978",

doi = "10.1116/1.569697",

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AU - Kahn, Antoine

AU - So, E.

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AU - Meyer, R. J.

PY - 1978

Y1 - 1978

N2 - Low-energy electron diffraction (LEED) intensity-voltage data for a complete set of first-order diffraction beams of the GaAs (110) surface is averaged at constant momentum transfer and compared with kinematical and dynamical model calculations for several surface atomic geometries. The atomic displacements in the surface and first two subsurface layers are obtained via this analysis. The influence of multiple scattering is examined by computing the single and multiple scattering contributions to the intensity-voltage profiles associated with atomic distortions within the first three lattice layers. This procedure allows the identification of the major features of the structure in the LEED-CMTA (constant momentum transfer average) profiles either with multiple scattering effects or with single scattering resonances derived from the lattice geometry.

AB - Low-energy electron diffraction (LEED) intensity-voltage data for a complete set of first-order diffraction beams of the GaAs (110) surface is averaged at constant momentum transfer and compared with kinematical and dynamical model calculations for several surface atomic geometries. The atomic displacements in the surface and first two subsurface layers are obtained via this analysis. The influence of multiple scattering is examined by computing the single and multiple scattering contributions to the intensity-voltage profiles associated with atomic distortions within the first three lattice layers. This procedure allows the identification of the major features of the structure in the LEED-CMTA (constant momentum transfer average) profiles either with multiple scattering effects or with single scattering resonances derived from the lattice geometry.

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SURFACE AND NEAR-SURFACE ATOMIC STRUCTURE OF GaAs (110).

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