Abstract
Reflection anisotropy spectroscopy (RAS) studies are reported of Si(111)-5x2-Au structures grown on substrates with different offcuts and step densities. Such substrates produce a predominant domain on the (111) terrace that would otherwise produce a negligible RAS signal, due to domain averaging. Changes in the RAS spectra with offcut angle are observed in the 1 to 3 eV region, where Au-induced structures appear. Results from offcuts towards [(11) over bar2] of 2 degrees, 3 degrees, 9.5 degrees, and -4 degrees are presented. The variation in the RAS spectra is consistent with different populations of single- and double-chain gold structures formed in the region of the steps.
Original language | English |
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DOIs | |
Publication status | Published - 2008 |
Event | 7th International Conference on Optics of Surfaces and Interfaces - Jackson Hole, United States Duration: 15 Jul 2007 → 20 Jul 2007 |
Conference
Conference | 7th International Conference on Optics of Surfaces and Interfaces |
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Country | United States |
City | Jackson Hole |
Period | 15/07/07 → 20/07/07 |
Keywords
- reflectance anisotropy
- anisotropy
- step formations