Phase separation on an atomic scale: the formation of a novel quasiperiodic 2D structure

Scanning tunneling microscopy of a '5 x 5' Cu/Si(111) ordered layer reveals an unusual type of quasi-periodic phase. Topographic and spectroscopic images together with their Fourier analysis reveal at least three electronically and structurally distinct local phases which arrange to form a...

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Bibliographic Details
Published in:Physical review letters 1989-02, Vol.62 (6), p.641-644
Main Authors: DEMUTH, J. E, KOEHLER, U. K, HAMERS, R. J, KAPLAN, P
Format: Article
Language:English
Subjects:
Alloys
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Physics
Specific materials
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:Scanning tunneling microscopy of a '5 x 5' Cu/Si(111) ordered layer reveals an unusual type of quasi-periodic phase. Topographic and spectroscopic images together with their Fourier analysis reveal at least three electronically and structurally distinct local phases which arrange to form a quasi-periodically ordered structure. The nature and origin of this novel structure are discussed. (Author)
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.62.641