THE LATTICE-DYNAMICS OF THE FLUOROPEROVSKITE KMGF3

被引：13

作者：

SALAUN, S ^{[1
]}

MORTIER, M ^{[1
]}

GESLAND, JY ^{[1
]}

ROUSSEAU, M ^{[1
]}

HENNION, B ^{[1
]}

机构：

[1] CENS,LEON BRILLOUIN LAB,F-91170 GIF SUR YVETTE,FRANCE

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1993年 / 5卷 / 41期

关键词：

D O I：

10.1088/0953-8984/5/41/009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The low-frequency (< 9 THz) phonon dispersion curves in the main symmetry directions of the fluoroperovskite crystal KMgF3 have been measured at room temperature by means of coherent inelastic neutron scattering. These dispersion curves are well described by a rigid-ion model. The mean square displacements (MSDS) of the ions and the phonon density of states are deduced.

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页码：7615 / 7622

页数：8

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