Relation between Structure and Magnetic Properties of Microstructured PrAlO3
B. Andrzejewskia, D.A. Pawlakb, T. Klimczukc, d and S. Turczyńskib
aInstitute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
bInstitute of Electronic Materials Technology, Wólczynska 133, 01-919 Warsaw, Poland
cFaculty of Applied Physics and Mathematics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-952 Gdańsk, Poland
dEuropean Commission, Joint Research Centre, Institute for Transuranium Elements, Postfach 2340, Karlsruhe, D-76125 Germany
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The magnetic properties of both the praseodymium-aluminium perovskite PrAlO3 crystal and its microstructured version: in the form: of a PrAlO3-PrAl11O18 eutectic have been investigated. It is shown that R3c → Imma 205 K first-order and Imma → C 2/m near 150 K second-order phase transitions in a PrAlO3 single crystal are suppressed after structuring the material and embedding it in a PrAl11O18 matrix. This behavior is related to the PrAl11O18 matrix, which mechanically hinders expansion of the microrods and in this way suppresses the phase transitions.
DOI: 10.12693/APhysPolA.121.1315
PACS numbers: 64.60.Ej, 71.70.Ej, 75.50.-y, 75.70.Tj