作者: J. Kroupa , J. Petzelt , G. V. Kozlov , A. A. Volkov
DOI: 10.1080/00150197808237273
关键词: Soft modes 、 Condensed matter physics 、 Far infrared 、 Anharmonicity 、 Spectral line 、 Reflectivity 、 Materials science 、 Transmittance 、 Dielectric dispersion 、 Ferroelectricity 、 Nuclear magnetic resonance
摘要: Abstract Polarized far-infrared reflectivity and submillimetre transmittance measurements revealed that the soft mode in PbHPO4 is of a relaxational type with relaxation time τ ≃ 5.3 · 10−11 (T-Tc )-1s for T>Tc =310 K 1.3 (Tc-T)−1 s T