LATTICE-DYNAMICS OF PYRITE FES2 BY COHERENT NEUTRON-SCATTERING

被引：11

作者：

BUHRER, W ^{[1
]}

LAFOUGERE, E ^{[1
]}

LUTZ, H ^{[1
]}

机构：

[1] UNIV SIEGEN,W-5900 SIEGEN,GERMANY

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1993年 / 54卷 / 11期

关键词：

PYRITE; LATTICE DYNAMICS; COHERENT INELASTIC NEUTRON SCATTERING; PHONONS;

D O I：

10.1016/0022-3697(93)90350-Z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The phonon dispersion of FeS2 has been investigated by coherent inelastic neutron scattering. The experimental data, i.e. frequencies and intensities as function of the wave vector, were analysed with a rigid ion model with short-range valence forces. The model gives a good description of the vibrational frequencies as well as of the atomic displacements. Derived properties like dielectric constant, specific heat, and Debye-Waller factors compare well with corresponding experiments.

引用

页码：1557 / 1565

页数：9

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