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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...
In the present paper X-ray diffraction topographic techniques were applied to a number of samples cut from Czochralski grown Pr_{x}La_{1-x}AlO_{3} crystals with different ratio of praseodymium and lanthanum. Conventional and synchrotron X-ray topographic investigations revealed differently developed domain structures dependent on the composition of mixed praseodymium lanthanum aluminium perovskites...
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