Relation between Structure and Magnetic Properties of Microstructured PrAlO3

The magnetic properties of both the praseodymiumaluminium perovskite PrAlO3 crystal and its microstructured version in the form of a PrAlO3PrAl11O18 eutectic have been investigated.It is shown that R3c → Imma 205 K rst-order and Imma → C2/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.