How Well Do We Know Atomic Motions of Simple Liquids?
Author(s) -
C. Cabrillo,
F. J. Bermejo,
María Álvarez,
P. Verkerk,
A. Maira-Vidal,
S. M. Bennington,
D.G. Martin
Publication year - 2002
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.89.075508
Subject(s) - particle (ecology) , simple (philosophy) , scattering , physics , neutron , neutron scattering , materials science , molecular physics , statistical physics , chemical physics , condensed matter physics , optics , quantum mechanics , philosophy , oceanography , epistemology , geology
Microscopic motions in molten potassium spanning three frequency decades are studied by neutron-scattering techniques. These comprise well-defined density oscillations and stochastic particle rearrangements and both are modeled on microscopic grounds. While vibratory motions are shown to share characteristics with those of their parent crystals, dynamic correlations between a diffusing particle and its neighbors can be accounted for only semiquantitatively.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom