Ca induced reconstructions of the Si(0 0 1) surface

The growth behavior of Ca on Si(0 0 1) has been studied with scanning tunneling microscopy and low energy electron diffraction. During the growth of the first atomic layer at elevated temperature, Ca induces several different ordered surface reconstructions. In order of ascending metal content, they...

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Bibliographic Details
Published in:Surface science 2009-10, Vol.603 (20), p.3072-3080
Main Authors: Cui, Y., Nogami, J.
Format: Article
Language:English
Subjects:
Alkaline earth metals
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth
Physics
Scanning tunneling microscopy
Silicon
Surface relaxation and reconstruction
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Summary:The growth behavior of Ca on Si(0 0 1) has been studied with scanning tunneling microscopy and low energy electron diffraction. During the growth of the first atomic layer at elevated temperature, Ca induces several different ordered surface reconstructions. In order of ascending metal content, they are: a 2 × n ( n = 3, 4, 5) phase that has limited long range order, a 2 × 6 striped phase, and a 1 × 3 phase. The 1 × 3 phase covers the entire surface at and beyond the point where Ca silicide island growth starts.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2009.08.019