Document Detail


High resolution imaging of superficial mosaicity in single crystals using grazing incidence fast atom diffraction.
MedLine Citation:
PMID:  23037859     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A new table top technique is used to simultaneously analyze the local morphology of crystalline surfaces as well as the misalignment of large scale domains at the topmost surface layer. The approach is based on fast atom diffraction at grazing incidence (GIFAD); the diffraction pattern yields the structural characteristics and the topology of the surface electronic density with atomic resolution. If superficial mosaicity is present, diffraction patterns arising from each mosaic domain can be distinguished, providing high sensitivity to the properties of each of the domains. Taking NaCl(001) as an example, we observe a discrete tilt angle distribution of the mosaic domains following an arithmetic progression with a 0.025° ± 0.005° difference; a twist mosaic angle of 0.09° ± 0.01° is also observed.
Authors:
B Lalmi; H Khemliche; A Momeni; P Soulisse; P Roncin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-05
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  24     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  442002     Citation Subset:  -    
Affiliation:
Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS-Université Paris-Sud 11, F-91405 Orsay Cedex, France.
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