Physical review. B, Condensed matter · 1997 · 25 citations · 8 references
Natural SciencesMaterials EngineeringMaterials ScienceCondensed Matter PhysicsMaterials ChemistrySurface ScienceSemiconductor SurfacesSurface Chemistry Of SolidsSurface CrystallographySurface MorphologySurface PhysicsThin Film Surface MorphologyAtomic-scale Surface ImagingMolecular Beam EpitaxyScanning Electron Microscopy Surface AnalysisSurface Defects CharacterizationSurface Electronic StructureSurface GrowthSurface StatesSurface Structure Determination
In this study we report on the microscopic structure of GaSb(001) c(2\ifmmode\times\else\texttimes\fi{}6) surfaces prepared by Sb decapping. Molecular beam epitaxy grown GaSb(001) layers capped with a protective Sb layer were transferred through the atmosphere into an UHV-analysis system and investigated by scanning tunneling microscopy (STM) and low energy electron diffraction (LEED). After thermal desorption of the capping layer clear c(2\ifmmode\times\else\texttimes\fi{}6) LEED patterns were observed. STM images show flat surface areas with a rowlike, somewhat disordered structure. High-resolution images resolve individual Sb dimers on the surface. The surface is covered by an incomplete layer of dimerized Sb, adsorbed on a complete second layer of Sb, which is also dimerized in that regions not covered by the fractional Sb top layer.
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Structures of As-Rich GaAs(001)-(2 × 4) Reconstructions
Tomihiro Hashizume, Q. K. Xue, Jing Zhou et al. · Physical Review Letters · 1994 · 288 citations
Natural Sciences, Materials Engineering, Materials Science +17