Syntheses of the (Ndx, Sm1-x)AlO3 and its structure relation to a series of rare earth orthoaluminates RAIO3

Akira Yoshikawa, Hiroyuki Horiuchi, Masahiko Tanaka, Toetsu Shishido, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Structure change from orthorhombic to trigonal system of (Ndx, Sm1-x)AlO3, which takes place by substituting Sm3+ for Nd3+, was investigated by X-ray powder diffraction method. The samples were prepared by a solid state reaction. Their structures are based on a perovskite-type structure with slightly deformed lattices from an ideal cubic structure. The lattice deformation from an ideal cubic lattice is minimum at around x = 0.0 and it systematically increases by the amount of substitution of Sm3+ for Nd3+, and the structure changes from orthorhombic to trigonal system at around x = 0.7. Thus, the substitution of Sm3+ for Nd3+ apparently plays a role of the changes of temperature and/or pressure for the cause of a first-order phase transition.

Original languageEnglish
Pages (from-to)221-226
Number of pages6
JournalJournal of Solid State Chemistry
Volume126
Issue number2
DOIs
Publication statusPublished - 1996 Nov 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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