The Atomic Structures of the Au-Induced Reconstructions of Si(111): 5 x 1, Square Root 3 x 3 Square Root 3 and 6 x 6
Abstract
The Au-induced Si(111) reconstructions were examined using LEED adn ICISS. The gold atoms in all three structures are bonded in threefold hollow sites 2.0 + or - 0.2A above a bulk-like silicon (111) surface. For coverages up to 0.4 monolayer, the Au forms rows along ((11)0)-type azimuths (5x1 phase). At coverages up to about 0.9 monolayer a honeycomb is formed with some centered adatoms 0.3 + or - 0.05A below the Au hexagons (sr.rt 3) x (sq.rt. 3) structure) . For a coverage of about 1.0 monolayer, the surface is a 75:25 mixture of filled and empty Au hexagons in a 6x6 superstructure. Keywords: Ion scattering, Honeycomb framework, Metal/semiconductor interfaces, Spot profiles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 22, 1988
- Accession Number
- ADA198582
Entities
People
- Judy H. Huang
- R. Stanley Williams
Organizations
- University of California, Los Angeles