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  Relation between rotational and translational dynamic heterogeneities in water

Mazza, M. G., Giovambattista, N., Starr, F. W., & Stanley, H. E. (2006). Relation between rotational and translational dynamic heterogeneities in water. Physical Review Letters, 96(5-10): 057803. doi:10.1103/PhysRevLett.96.057803.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-2FB1-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-2FB2-6
Genre: Journal Article

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 Creators:
Mazza, Marco G.1, Author              
Giovambattista, Nicolas, Author
Starr, Francis W., Author
Stanley, H. Eugene, Author
Affiliations:
1Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063308              

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 Abstract: We use molecular dynamics simulations to probe the rotational dynamics of the extended simple point charge model of water for a range of temperatures down to 200 K, 6 K above the mode coupling temperature. We find that rotational dynamics is spatially heterogeneous; i.e., there are clusters of molecules that rotate significantly more than the average for a given time interval, and we study the size and the temporal behavior of these clusters. We find that the position of a rotational heterogeneity is strongly correlated with the position of a translational heterogeneity, and that the fraction of molecules belonging to both kinds of heterogeneities increases with decreasing temperature. We further find that although the two types of heterogeneities are not identical, they are related to the same physical picture.

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Language(s): eng - English
 Dates: 2006-02-09
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevLett.96.057803
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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 4 Volume / Issue: 96 (5-10) Sequence Number: 057803 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1