Nanotech 2007 Vol. 1
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 1

# Scanning Tunneling Microscopy Images of Au Adsorbed on GaAs(111)B surface

Authors: H. Yi, P. Kratzer, E. Hilner and A. Mikkelsen

Affilation: KISTI, Korea

Pages: 458 - 461

Keywords: STM, simulation, adsorption, DFT

Abstract:
We have studied the GaAs(111)B surface with Au deposited either homogeneously or as nanoparticles, and found the presence of Au in either form to give rise to a $(\sqrt{3} \!\times\! \sqrt{3} )$ Au-induced surface reconstruction. In the structural model supported by our DFT calculations for an Au coverage of 1/3 ML, Au atoms are adsorbed at every third threefold hollow hcp site of the Ga lattice. The proposed structural model is in agreement with experimental data from low-energy electron diffraction and STM.

ISBN: 1-4200-6182-8
Pages: 726
Hardcopy: \$139.95

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