Eight-Pseudospin Model of KH2PO4-Type Crystals: II. Phase Transitions and Dielectric Susceptibilities
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概要
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The phase transitions in ferroelectric KH2PO4 (KDP) and antiferroelectric NH4H2PO4 (ADP) crystals are discussed on the basis of the eight-pseudospin model of KH2PO4-type crystals previously proposed, where eight pseudospins represent protons on hydrogen bonds connecting PO4 radicals in a unit cell. The dielectric susceptibilities along the c-axis, which is the unique ferroelectric axis, and a (b)-axis, which is perpendicular to the unique axis, are calculated.
- 2011-05-15
著者
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Iwata Makoto
Department Of Applied Physics School Of Engineering Nagoya University
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BLINC Robert
Jozef Stefan Institute
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Ishibashi Yoshihiro
Department Of Applied Physics Graduate School Of Engineering Nagoya University
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Blinc Robert
Jozef Stefan Institute, P. O. Box 3000, 1001 Ljubljana, Slovenia
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