Abstract
The surface atomic structure of Bi on Au(1 1 1) is studied with scanning tunneling microscopy. At about 0.5 monolayer of Bi, a well-ordered 6 × 6 atomic structure is observed. The structure has three notable features: corner holes, Bi adatoms, and stacking faults, very similar to a semiconductor surface of Si(1 1 1)-7 × 7. Out of 18 Bi surface atoms in a unit cell, six atoms are at hollow sites and are adatoms, and another six atoms are near-bridge sites. The last six atoms surround corner holes and are lower than other surface atoms by about 0.2 Å. A possible atomic model is proposed based on our observation.
Original language | English |
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Pages (from-to) | 145-150 |
Number of pages | 6 |
Journal | Surface Science |
Volume | 603 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Jan 1 |
Keywords
- Growth
- Scanning tunneling microscopy
- Surface structure
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry