High-Resolution X-Ray Diffraction Study of Commensurate-Incommensurate Phase Transition in [N (CH_3)_4]_2MnCl_4 under Pressure

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概要

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• Using synchrotron radiation, we have performed a high-resolution X-ray diffraction study of aphase transition between the incommensurate phase and the commensurate phase characterizedby the wave vector q z 3c"77 in IN(CH3)4]2MIlCl4 under pressure. The pressure dependence ofthe wave vector q exhibits an "incomplete devil's staircase." The luigh-resolution capability ofthe synchrotron radiation reveals that the incommensurate satellite reflection shows an asym-metric and broad line shape along the modvulation direction, while the q : 3c" /T commensuratesuperlattice reflection is symmetric and its width is equal to the instrumental resolution. Such aprofile of the incommensurate satellite reflection is found to depend on the history of the crystal.

• 社団法人日本物理学会の論文
• 1996-03-15

著者

• FUJII Yasuhiko

  Neutron Scattering Laboratory,Institute for Solid State Physics,The University of Tokyo

• SHIMOMURA Susumu

  Department of Physics, Faculty of Science and Technology, Keio University

• HAMAYA Nozomu

  Department of Physics, Ochanomizu University

• Shimomura S

  Faculty Of Science And Technology Keio University

• Shimomura Susumu

  Department Of Physics Kwansei-gakuin University

• Shimomura Susumu

  Department Of Physics Faculty Of Science And Technology Keio University

• Fujii Yasuhiko

  Neutron Scattering Laboratory Issp The University Of Tokyo

• Hamaya N

  Ochanomizu Univ. Tokyo Jpn

• Hamaya Nozomu

  Department Of Physics Ochanomizu University

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