Ferroelectric Phase Transition and Anisotropy of Dielectric Constant in Ice Ih

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概要

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• The static dielectric constant of ice Ih is calculated, considering the energy differences between the configurations of hydrogen atoms obeying the Bernal-Fowler rule, by Takagi's method of KDP crystals in the framework of Kirkwood-Fr6hlich theory. This is the study of the phase transiton with thirteen order parameters. A model of water molecule, called the tetrapod model, is proposed, which is a four-point~charge model plus an additional quadrupole moment. Considering the multipole interaction, the Curie-Weiss law is derived. With the change of the quadrupole moment, ferroelectric or antiferroelectric phase transi-tion occurs. With suitable quadrupole moment, the experimental Curie-Weiss constant 46 K parallel to the c-axis and the observed anisotropy of the dielectric constants can both be derived, where the transition temperature to ferroelectric phase is 69 K.

• 社団法人日本物理学会の論文
• 1981-11-15

著者

• Minagawa Isao

  Department Of Physics University Of Tokyo

• Minagawa Isao

  Department Of Science Kokugaku-in University

関連論文

• Phase Transition of Ice Ic with Bjerrum Defects
• Order-Disorder Phase Transition and Dielectric Constant of Ice Ic
• Phase Transition of Cubic Ice Ic
• Ferroelectric Phase Transition and Anisotropy of Dielectric Constant in Ice Ih
• A Theory of the Mobility of (H_3O)^+ Defects in Ice Crystal

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