Line broadening in the collective dynamics of liquid and solid water

被引:26
作者
Ruocco, G
Sette, F
Krisch, M
Bergmann, U
Masciovecchio, C
Verbeni, R
机构
[1] IST NAZL FIS MAT,I-67100 LAQUILA,ITALY
[2] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE
来源
PHYSICAL REVIEW B | 1996年 / 54卷 / 21期
关键词
D O I
10.1103/PhysRevB.54.14892
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The linewidth of collective acousticlike modes of liquid and solid (ice Ih) water, measured by inelastic x-ray scattering at momentum transfers (Q) larger than 2 nm(-1), shows a large increase at the Q values of approximate to 7.5 nm(-1). This result, together with previous observations on both acousticlike and opticlike excitations, further emphasizes the analogies in the whole high-frequency collective dynamics of liquid and solid H2O, and challenges our present understanding of these dynamical phenomena.
引用
收藏
页码:14892 / 14895
页数:4
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