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Scanning Tunneling Microscopy Identification of Atomic-Scale Intermixing on Si(100) at Submonolayer Ge Coverages

Journal Article · · Physical Review Letters
 [1];  [2];  [1]
  1. University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
  2. Sandia National Laboratories, Albuquerque, New Mexico 87185-1413 (United States)

The positions of Ge atoms intermixed in the Si(100) surface at very low concentration are identified using empty-state imaging in scanning tunneling microscopy. A measurable degree of place exchange occurs at temperatures as low as 330 K. Contrary to earlier conclusions, good differentiation between Si atoms and Ge atoms can be achieved by proper imaging conditions. (c) 2000 The American Physical Society.

OSTI ID:
20216593
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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