Li diffusion and fullerene dynamics in lithium fulleride Li12C60 from inelastic neutron scattering experiments

被引:3
作者
Cristofolini, L
Cicognani, G
Dianoux, AJ
Facci, P
Fontana, MP
Riccò, M
机构
[1] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy
[2] Univ Parma, INFM, I-43100 Parma, Italy
[3] INFM, F-38042 Grenoble, France
[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
来源
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1999年 / 79卷 / 11-12期
关键词
D O I
10.1080/13642819908223095
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present results on the dynamics of the Li+ ions and of the C-60 molecular units in Li12C60 Obtained by INS and QENS experiments performed on IN6 (at the Institut Laue-Langevin) covering the temperature range 150 K to 600 K. The transition from the high temperature Fm (3) over bar m to the low temperature tetragonal structure of Li12C60 is accompanied by significant changes in the vibrational density of states (v-DOS). The role of the Li+ vibrational and diffusional motion in determining the changes in the overall v-DOS is investigated.
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页码:2065 / 2071
页数:7
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