New phase of BaLaMnO_<4-x> formed by annealing in a reducing atmosphere(<Feature>Global Innovation in Advanced Ceramics)

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概要

• 論文の詳細を見る

• A single crystal of BaLaMnO_4 with I4/mmm has been synthesized by a floating zone method. A new phase of BaLaMnO_<4-x> was obtained by annealing the single crystal in a reducing atmosphere at 773 K for 168 h. The structural change was analyzed by four-circle X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The new phase has an orthorhombic unit cell (Cccm) of a = 0.5504 (7) nm, b = 0.5502 (5) nm, and c = 1.3265(1) nm. The structural change from I4/mmm into Cccm was caused by an oxygen deficiency, and a small amount of Mn^<2+> ions was formed by annealing in a reducing atmosphere.

• 社団法人日本セラミックス協会の論文
• 2008-03-01

著者

• Nakano Hiromi

  Cooperative Res. Facility Center Toyohashi Univ. Of Technol.

• NAKANO Hiromi

  Ryukoku University

• KAWABATA Norikatsu

  Toyohasi University of Technology

• KAMEGASHIRA Naoki

  Toyohasi University of Technology

• Nakano Hiromi

  Sumitomo Electric Industries, Ltd.

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• New phase of BaLaMnO_ formed by annealing in a reducing atmosphere(Global Innovation in Advanced Ceramics)

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