Lattice modes in PbHPO4 and H2C4O4

被引：0

作者：

Wesselinowa, JM

Apostolov, AT

机构：

[1] Department of Physics, University of Sofia, BG-1126 Sofia

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1997年 / 203卷 / 01期

关键词：

D O I：

10.1002/1521-3951(199709)203:1<53::AID-PSSB53>3.0.CO;2-D

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A microscopic model has been proposed which gives an explanation of the observed anomalies in the phonon spectra of hydrogen-bonded ferroelectrics. Using a Green's function technique me have obtained a nonlinear temperature dependence of the frequencies of the phonon modes in PbHPO4 and H2C2O4 in agreement with the experimental data. The importance of the proton ordering effects, i.e. the pseudo-spin-phonon interaction on the lattice modes is shown.

引用

页码：53 / 58

页数：6

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