Features of the rhombohedral-to-orthorhombic structural phase transition in La1-xSrxMnO3

M. Arao, Y. Koyama, Y. Inoue, Y. Moritomo

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The R3̄c-to-Pbnm structural phase transition in La1-xSrxMnO3, Which is characterized by changes in the rotational displacement of the MnO6 octahedra and in the crystal system, has been investigated by transmission electron microscopy. The experimental data indicate that the former change results in the appearance of thé antiphase boundary and the latter produces the (110) and (112) twin structures. In addition, the structural phase transition can be reproduced on the basis of the Landau theory, in which a normal structure and an order parameter are, respectively, assumed to be the Pm3m structure and normal coordinates of the rotational displacements.

本文言語English
ページ(範囲)5399-5405
ページ数7
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
62
9
DOI
出版ステータスPublished - 2000 9月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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