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Atomic surface and lattice structures of AgBr thin-films
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 171274
Author(s) HAEFKE, H; MEYER, E; HOWALD, L; SCHWARZ, U; GERTH, G; KROHN, M
Author(s) at UniBasel Meyer, Ernst
Year 1992
Title Atomic surface and lattice structures of AgBr thin-films
Journal Ultramicroscopy
Volume 42
Number Part A
Pages / Article-Number 290-297
Abstract

We have studied the surfaces of (001)- and (111)-oriented AgBr thin films by means of the decoration technique and atomic force microscopy (AFM). On 100 surfaces both methods exhibit the complete step structure including steps of atomic height. On 111 surfaces a superstructure is imaged with spacings of about 6 nm. A six-fold symmetry of the superstructure is revealed by gold decoration. The decorating gold nuclei are highly ordered and aligned along the [110] directions of the AgBr lattice. For the first time atomic resolution of the surface lattice is achieved at both 100 and 111 faces by AFM. The imaged lattices of the protrusions on the cubic faces and the octahedral faces with spacings of 0.41 +/- 0.02 nm and 0.42 +/- 0.02 nM, respectively, correspond to the unreconstructed (1 X 1) surfaces.

Publisher Elsevier
ISSN/ISBN 0304-3991
edoc-URL http://edoc.unibas.ch/dok/A5839522
Full Text on edoc No
Digital Object Identifier DOI 10.1016/0304-3991(92)90281-N
ISI-Number WOS:A1992JL73700045
Document type (ISI) ArticleProceedings Paper
 
   

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