Phase Transition in Lead Zirconate.
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概要
- 論文の詳細を見る
Detailed investigations on the dielectric and the thermal properties of PbZrO_3 have been made and compared with those of ferroelectric BaTiO_3 In contrast with barium titanate, volume change at the transition near 220℃ has turned out to be expansion, being δV/V=2.7×10^<-3>, and a large amount of anomalous specific heat of ca. 400 cal./mole have been found. Spontaneous polarization estimated from the hysteresis loop, and the effects of D.C. bias upon the permittivity and especially the shift of the transition point all imply that a spontaneous polarization may not exist below the Curie point. Since the dielectric constant, nevertheless, becomes extraordinarily high at the Curie point, it must be reasonable to say that lead zirconate belongs to a new type of dielectrics, say, antiferroelectrics. When the sample contains some additional materials, a narrow region of ferroelectric phase has been observed between antiferroelectric and paraelectric ones. The temperature range of this phase is sensitively. affected by the amount and the species of the additional materials.
- 社団法人日本物理学会の論文
- 1951-10-25
著者
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Shirane Gen
Tokyo Institute Of Technology
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Sawaguchi Etsuro
Tokyo Institute Of Technology
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TAKAGI Yutaka
Tokyo Institute of Technology
関連論文
- On the Phase Transition in Lead Titanate.
- On the Phase Transition in Barium-Lead Titanate (II)
- On the Phase Transition in Barium-Lead Titanate (1).
- Tentative Explanation of the Hysteresis Loops of Rochelle Salt
- Phase Transition in Lead Zirconate.
- Dielectric Properties of Lead Zirconate.
- Crystal Structure of Lead Titanato and of Lead-Barium Titanate
- Effects of Mechanical Pressures on the Dielectric Properties of Polycrystalline Barium-Strontium Titanate.
- Phase Transitions in Solid Solutions of PbZrO_3 and PbTiO_3 (II) X-ray Study
- Volume Change at Three Transitions in BaTiO_3 Ceramics.
- Crystal Structure of Pb(Zr-Ti)O_3
- Transition Energy and Volume Change at Three Transitions in Barium Titanate
- Phase Transitions in Solid Solutions of PbZrO_3 and PbTiO_3 (I) Small Concentrations of PbTiO_3
- Ferroelectric and Optical Properties of Na(K-NH_)-tartrate Mixed Crystals
- Dielectric Residual Polarization of Barium Titanate Ceramic
- Lattice Constant of PbZrO_3
- Theory of the Transition in KH_2PO_4 (II).
- On the Electrostrictive Effect of Barium Titanate
- Antiferroelectricity and Ferroelectricity in Lead Zirconate
- Ferroelectricity of NaNH_4-Tartrate
- Statistical Theory of Rotational Phase Transition, I
- Statistical Theory of Binary Alloys : (IV) β-Brass Type of Superstructure
- Theory of the Transition in KH_2PO_4 (I).
- Dielectric Residual Polarization of Barium Titanate Ceramic