LINE BROADENING IN THE COLLECTIVE DYNAMICS OF LIQUID AND SOLID WATER

Authors
RUOCCO G SETTE F KRISCH M BERGMANN U MASCIOVECCHIO C VERBENI R
Citation
G. Ruocco et al., LINE BROADENING IN THE COLLECTIVE DYNAMICS OF LIQUID AND SOLID WATER, Physical review. B, Condensed matter, 54(21), 1996, pp. 14892-14895
Citations number
17
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
21
Year of publication
1996
Pages
14892 - 14895
Database
ISI
SICI code
0163-1829(1996)54:21<14892:LBITCD>2.0.ZU;2-U
Abstract
The linewidth of collective acousticlike modes of liquid and solid (ic e Ih) water, measured by inelastic x-ray scattering at momentum transf ers (Q) larger than 2 nm(-1), shows a large increase at the Q values o f approximate to 7.5 nm(-1). This result, together with previous obser vations on both acousticlike and opticlike excitations, further emphas izes the analogies in the whole high-frequency collective dynamics of liquid and solid H2O, and challenges our present understanding of thes e dynamical phenomena.