The Temperature Dependence of the Debye-Waller Factors of Barium Titanate

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概要

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• The temperature dependence of the Bragg reflections along the c-axis has been measured in the temperature range 20℃ to 180℃. Anomalous peaks were observed in the 007 and 009 reflections at calculated from the intensity data, were found to be approximately the same in the temperature range 20℃ to 100℃. At 105℃ the temperature parameter of the Ti atom begins to increase, reaches a peak value at T=T_o=118℃, and then decreases again as T approaches T_c. The temperature parameters of the other atoms remain practically constant in this temperature range. No decreases in the intensities could be observed in the cubic phase near the transition. It therefore seems that the contribution of the low frequency transverse optic vibrations to the temperature parameters must be rather small and almost constant with temperature.

• 社団法人日本物理学会の論文
• 1970-11-05

著者

• Pedersen Turid

  The Institute For Solid State Physics The University Of Tokyo:(present Address) University Of Melbou

関連論文

• The Temperature Dependence of the Debye-Waller Factors of Barium Titanate

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