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2012 | 121 | 4 | 910-914
Article title

Synchrotron Topographic Studies of Domain Structure in Czochralski Grown Pr_xLa_{1-x}AlO_3 and Pr_xLa_{1-x-y}Mg_yAlO_3 Crystals

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Abstracts
EN
A domain structure and crystallographic defects in Czochralski grown single crystals of Pr_xLa_{1-x}AlO_3 and Pr_xLa_{1-x-y}Mg_yAlO_3 were characterised with a number of methods including conventional and synchrotron X-ray diffraction topography, and polariscopic micrography. The observed twin domain systems were located perpendicularly to 〈100〉_{pcub} and 〈110〉_{pcub} (pseudocubic) directions. It has been confirmed that the domains are of the same orientation and a twin character as those described in literature for LaAlO_3 and LaGaO_3 crystals. The use of section transmission topography enabled to indicate that the domains are perpendicular to the (100)_{pcub} surface of the samples. The misorientation of lattice in the domains was evaluated from the white beam topographs and a tendency of its increase with increasing concentration of praseodymium was revealed.
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Contributors
author
  • National Centre for Nuclear Research, A. Sołtana 7, Otwock-Świerk 05-400, Poland
  • Institute of Electronic Materials Technology, Wólczyńska 133, Warszawa 01-919, Poland
author
  • Institute of Electronic Materials Technology, Wólczyńska 133, Warszawa 01-919, Poland
  • Institute of Electronic Materials Technology, Wólczyńska 133, Warszawa 01-919, Poland
  • Warsaw University, Institute of Experimental Physics, Hoża 69, Warszawa 00-681, Poland
author
  • Institute of Electronic Materials Technology, Wólczyńska 133, Warszawa 01-919, Poland
  • Institute of Electronic Materials Technology, Wólczyńska 133, Warszawa 01-919, Poland
author
  • HASYLAB at DESY, Notkestrasse 85, D-22607 Hamburg, Germany
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n4p211kz
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