The Role of Lattice System on Ferroelectric Phase Transition in PbHPO_4
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概要
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In view of the importance of the role of host lattice on the proton configurations in hydrogen-bonded crystals, a cluster theory is developed to explain the phase transition in one-dimensional ferroelectrics PbHPO_4. The correlation between the spontaneous polarization and Pb-PO_4 translational mode frequency is analyzed on the basis of a pseudo-spin model for the proton system. It is shown that rather high transition temperature T_c in this system is related with the large anisotropy among proton-proton correlations and the renormalization of the host lattice into proton system.
- 社団法人日本物理学会の論文
- 1993-06-15
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