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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2017: 1.144
5-year IMPACT FACTOR: 1.144

CiteScore 2017: 1.08

SCImago Journal Rank (SJR) 2017: 0.495
Source Normalized Impact per Paper (SNIP) 2017: 0.495

Online
ISSN
2196-7156
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Volume 230, Issue 4

Issues

Atomic Structure Imaging in ZnSe and Mixed Zn0.74Mn0.2Be0.06Se Crystals with X-ray Fluorescence Holography

Karol Maria Dąbrowski / Dawid Tadeusz Dul / Franciszek Firszt / Agnieszka Marasek / Karol Strzałkowski / Paweł Korecki
Published Online: 2015-12-18 | DOI: https://doi.org/10.1515/zpch-2015-0661

Abstract

X-ray fluorescence holograms of ZnSe and Zn0.74Mn0.2Be0.06Se single crystals were measured by means of a table-top laboratory setup. Holograms were recorded simultaneously for Zn K, Se K and, in the case of the mixed crystal, for Mn K X-ray fluorescence. Analysis of the holograms was based on a linear regression algorithm preceded by the matrix effects correction. It enabled the determination of real and imaginary parts of the structure factors from which atomic structures around different fluorescing atoms could be reconstructed. In particular, direct imaging of Mn lattice sites in Zn0.74Mn0.2Be0.06Se unambiguously demonstrated that the majority of Mn atoms occupy substitutional Zn positions. However, it was shown that the precise analysis of Mn lattice site distribution can be hindered due to extinction effects which have to be included in the analysis of XFH in the case of non-centrosymmetric samples.

Keywords: X-ray Fluorescence Holography; Semiconductor Mixed Crystals; Elements Specific Imaging

About the article

Accepted: 2015-10-30

Received: 2015-07-17

Published Online: 2015-12-18

Published in Print: 2016-04-28


Citation Information: Zeitschrift für Physikalische Chemie, Volume 230, Issue 4, Pages 471–487, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1515/zpch-2015-0661.

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