Journal
E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY
Volume 3, Issue -, Pages 151-155Publisher
SURFACE SCI SOC JAPAN
DOI: 10.1380/ejssnt.2005.151
Keywords
Phase transition; Order-disorder phase transition; Scanning tunneling microscopy; Silver; Silicon
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Funding
- Japanese Society for the Promotion of Science
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The Si(111)-c(12x2)-Ag surface phase was observed by scanning tunneling microscopy (STM) at 65 K and its atomic structure was analyzed in detail. The phase is the ground-state structure within the framework of 'Honeycomb-Chain Channel' reconstruction, attained through successive phase transitions by cooling from 3x1 (>= ca. 500 K) and 6x1 phases (>= ca. 100 K). The transitions are likely order-disorder types with two-step freezing of fluctuation of the Ag atom positions.
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