BETA REVERSIBLE GAMMA-SNF2 PHASE-TRANSITION - NEUTRON-DIFFRACTION AND NMR-STUDY

被引：17

作者：

PANNETIER, J

DENES, G

DURAND, M

BUEVOZ, JL

机构：

[1] UNIV RENNES 1,CNRS,CHIM MINERALE D LAB 254,F-35042 RENNES,FRANCE

[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL DE PHYSIQUE | 1980年 / 41卷 / 09期

关键词：

D O I：

10.1051/jphys:019800041090101900

中图分类号：

学科分类号：

摘要：

Lattice and atomic-position parameters of SnF//2 were measured by neutron diffraction for both orthorhombic ( beta ) and tetragonal ( gamma ) phases. Both structural and **1**9F NMR results indicate a continuous second order transition at 66 degree C. The fluorine atoms undergo large displacements as a function of temperature but there is no change of size of the (SnF//4) bipyramids.

引用

页码：1019 / 1024

页数：6

共 17 条

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