Structural study on cubic-tetragonal transition of CH_3NH_3PbI_3

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概要

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• The cubic-tetragonal phase transition of CH_3NH_3PbI_3 was investigated by single crystal X-ray diffractometry. The crystal structure was refined at five temperatures in the teragonal phase. The PbI_6 octahedron rorates around the c-axis alternatively to construct the SrTiO_3-type tetragonal structure. A methylammonium ion is partially orderd; 24 disordered states in the cubic phase are reduced to 8. With decreasing temperature, the rotation angle of the octahedron increases monotonically, which indicates it is an order parameter of the cubic-tetragonal transition.

• 社団法人日本物理学会の論文
• 2002-07-15

著者

• MASHIYAMA Hiroyuki

  Department of Physics,Faculty of Science,Yamaguchi University

• Mashiyama Hiroyuki

  Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University

• Mashiyama Hiroyuki

  Department Of Physics Yamaguchi University

• Kawamura Y

  Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University:(present Addre

• HASEBE Katsuhiko

  Department of Physics, Yamaguchi University

• Mashiyama H

  Faculty Of Science Yamaguchi University

• KAWAMURA Yukihiko

  Department of Physics, Biology and Informatics, Faculty of Science, Yamaguchi University

• Hasebe K

  Yamaguchi Univ. Yamaguchi

• Hasebe Katsuhiko

  Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University

• Hasebe Katsuhiko

  Department of Physics, Biology and Informatics, Faculty of Science, Yamaguchi University

• Kawamura Yukihiko

  Department of Physics, Biology and Informatics, Faculty of Science,

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