Growth of rare earth aluminate crystals from molten solutions

T. Shishido, M. Tanaka, H. Horiuchi, H. Iwasaki, N. Toyota, D. Shindo, T. Fukuda

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    12 Citations (Scopus)

    Abstract

    Single crystals of rare earth aluminates REA103 (RE Ce, Pr and Tb) were obtained by a solution growth method. The solute was prepared by a sintering method in a graphite crucible and the crystal growth was performed using KF or PbF2 as a flux. All processes were carried out under an He atmosphere in order to control the RE valency to RE3+. Tetragonal-type single crystals of CeAlO3, which are large enough for studies of crystal structures and physical properties, were successfully obtained. The Laue symmetry P4/mmm was confirmed by means of single-crystal X-ray diffraction using a precession camera and a diffractometer. The lattice parameters are a = 3.7669(9) Å and c = 3.7967(7) Å. The temperature dependence of the magnetization basically indicates the paramagnetic state. REA1O3 with RE Pr and Tb were studied by X-ray powder diffraction and found to belong to the rhombohedral system.

    Original languageEnglish
    Pages (from-to)84-86
    Number of pages3
    JournalJournal of Alloys and Compounds
    Volume192
    Issue number1-2
    DOIs
    Publication statusPublished - 1993 Feb 23

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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