Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/18789
Title: Molecular dynamics study of orientational cooperativity in water
Author: Kumar, Pradeep
Franzese, Giancarlo
Buldyrev, V. S. (Vladimir Sergeevich)
Stanley, H. Eugene (Harry Eugene), 1941-
Keywords: Equacions d'estat
Química física
Reologia
Equations of state
Physical chemistry
Rheology
Issue Date: 2006
Publisher: The American Physical Society
Abstract: Recent experiments on liquid water show collective dipole orientation fluctuations dramatically slower than expected (with relaxation time >tation, the self-dipole randomization time tr, which is an upper limit on ta; we find that tr5ta. Third, to check if there are correlated domains of dipoles in water which have large relaxation times compared to the individual dipoles, we calculate the randomization time tbox of the site-dipole field, the net dipole moment formed by a set of molecules belonging to a box of edge Lbox. We find that the site-dipole randomization time tbox2.5ta for Lbox3 , i.e., it is shorter than the same quantity calculated for the self-dipole. Finally, we find that the orientational correlation length is short even at low T.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.73.041505
It is part of: Physical Review E, 2006, vol. 73, núm. 4, p. 041505-1-041505-8
URI: http://hdl.handle.net/2445/18789
ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

Files in This Item:
File Description SizeFormat 
558134.pdf154.21 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.