Pressure-induced phase transition in PrAIO₃

Brendan J. Kennedy, Thomas Vogt, C. David Martin, John B. Parise, Joseph A. Hriljac

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


PrAlO3 is shown to undergo a rhombohedral (R (3) over bar 3c) to orthorhombic (Imma) phase transition upon application of pressures of up to 9.1 GPa. The structures in both phases have been refined from high-resolution synchrotron diffraction data. The structure initially evolves toward a higher-symmetry structure as the pressure is increased before ultimately undergoing a first-order transition to a lower-symmetry orthorhombic structure. This behavior appears to be related to the change in the tilting of the AlO6 groups.
Original languageEnglish
Pages (from-to)2644-2648
Number of pages5
JournalChemistry of Materials
Issue number6
Publication statusPublished - 17 Jun 2002


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