Dielectric Critical Slowing-Down in Ferroelectric (CH3NHCH2COOH)3·CaCl2

作者: Kiyoshi Deguchi , Noriari Aramaki , Eiji Nakamura , Kuninobu Tanaka

DOI: 10.1143/JPSJ.52.1897

关键词: Kinetic isotope effectDielectric dispersionPhononSofteningFerroelectricityAnalytical chemistryDebyeMaterials scienceDielectricCurie temperatureCondensed matter physicsGeneral Physics and Astronomy

摘要: Complex dielectric constants of (CH 3 NHCH 2 COOH) ·CaCl and NDCH COOD) have been measured. between 10 4 Hz 9 in the Curie temperature region. No appreciable isotope effect was found complex as well temperature. Dielectric dispersion Debye type which showed a critical slowing-down observed above about 100 MHz. Discussion made relation softening optical phonon reported previously.

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