MOTION OF CH4 MOLECULES IN D2O CLATHRATE FROM INCOHERENT INELASTIC NEUTRON-SCATTERING

被引：4

作者：

SEARS, VF ^{[1
]}

POWELL, BM ^{[1
]}

TSE, JS ^{[1
]}

RATCLIFFE, CI ^{[1
]}

HANDA, YP ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA

来源：

PHYSICA B | 1992年 / 180卷

基金：

英国医学研究理事会;

关键词：

D O I：

10.1016/0921-4526(92)90426-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The motion of CH4 molecules encaged in a D2O clathrate lattice has been studied at six temperatures between 5 and 77 K by incoherent inelastic neutron scattering and compared with molecular dynamics calculations. The results verify the free quantum-mechanical rotation of the CH4 molecules within their cages, and show that the translational motion of these molecules is strongly coupled to the vibrations of the host lattice and is heavily damped at the higher temperatures.

引用

页码：658 / 660

页数：3

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