Journal Article

PUBDB-2015-01257

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Double Hexagonal Close-Packed Structure Revealed in a Single Colloidal Crystal Grain by Bragg Rod Analysis

Meijer, J.-M.>Extern* ; Shabalin, A.DESY* ; Dronyak, R.>Extern* ; Yefanov, O.CFEL* ; Singer, A.>Extern* ; Kurta, R.>Extern*XFEL* ; Lorenz, U.>Extern* ; Gorobstov, O. ; Dzhigaev, D.DESY* ; Gulden, J.>Extern* ; Byelov, D.>Extern* ; Zozulya, A.DESY* ; Sprung, M.DESY* ; Vartanyants, I. A.DESY* ; Petukhov, A. (Corresponding author)>Extern*

2014
Munksgaard Copenhagen

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Please use a persistent id in citations: doi:10.1107/S1600576714010346

Abstract: A coherent X-ray diffraction study of a single colloidal crystal grain composedof silica spheres is reported. The diffraction data contain Bragg peaks andadditional features in the form of Bragg rods, which are related to the stacking ofthe hexagonally close-packed layers. The profile of the Bragg rod shows distinctintensity modulations which, under the specific experimental conditions usedhere, are directly related to the stacking sequence of the layers. Using a modelfor the scattered intensity along the Bragg rod for an exact stacking sequence ofa finite number of hexagonally close-packed layers, it is found that a doublehexagonal close-packed stacking sequence is present in the colloidal crystalgrain. This analysis method opens up ways to obtain crucial structuralinformation from finite-sized crystalline samples by employing advancedthird-generation X-ray sources.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. FS-Photon Science (FS-PS)
3. Experimentebetreuung PETRA III (FS-PE)
4. European XFEL (Eur.XFEL)

Research Program(s):

1. PETRA Beamline P10 (POF2-54G14) (POF2-54G14)

Experiment(s):

1. PETRA Beamline P10 (PETRA III)

Appears in the scientific report 2014

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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