Relaxor Behaviors in Ferroelectric-Antiferroelectric Mixed Crystals

スポンサーリンク

概要

• 論文の詳細を見る

• In order to search for relaxor ferroelectrics or relaxor antiferroelectrics in Pb-excluded substances, ferroelectric and antiferroelectric mixed crystals Rb_<1-x>(NH_4)_xH_2PO_4 are investigated from the theoretical viewpoint of the precursor to glass state. Both boundary regions between ferroelectric (FE) and glassy (G) phases, and between antiferroelectric (AFE) and glassy (G) phases are examined and relaxor-like behaviors are found in the present theory on X-ray diffraction and on dielectric constants. The relaxor-like behavior as an embryo of the glass is proposed in the antiferroelectric-glass (AFE-G) phase boundary region where the growth of glass ordering is shown in quite a different pattern from that of the FE-G phase boundary region. The condition for appearance of the relaxor is discussed as being due to the proton spatial correlation in structurally frustrated systems.

• 社団法人応用物理学会の論文
• 2002-11-30

著者

• Takahashi Kazuyoshi

  Faculty Of Engineering Gifu University

• MATSUSHITA Eiko

  Faculty of Engineering, Gifu University

• Matsushita Eiko

  Faculty Of Engineering Gifu University

関連論文

• Relaxor Behaviors in Ferroelectric-Antiferroelectric Mixed Crystals
• Attempt at Extending BCS-Like Theory to Explain Fullerene Superconductors(Condensed Matter Physics)
• The Role of Hydrogen Bonds in Antiferroelectricity of NH_4H_2PO_4
• Aspect of T_{\text{c}} Enhancement and Face-Centered Cubic-Based A15 Structural Change in Cs3C60 Superconductors
• Field Effect on Displacive First-Order Transition in Relaxor Ferroelectrics
• A Cluster Model of Quasi-One-Dimensional H(D)-Ordering Phase Transitions
• The Role of Lattice System on Ferroelectric Phase Transition in PbHPO_4
• Theoretical Study of ^Rb NMR Spectra in H-Bonded RDP-ADP Mixed Crystals

スポンサーリンク