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Dipole time correlation functions of the Stockmayer fluid in the microcanonical and canonical ensembles
journal contribution
posted on 1993-10-01, 00:00 authored by V Payne, Maria ForsythMaria Forsyth, J Kolafa, M Ratner, S de LeeuwComputer simulations of Stockmayer fluids were performed to generate dipole time correlation functions (TCF) at three temperatures and three dipole moments in both the microcanonical and canonical ensembles. The effect of Nosé constant-temperature dynamics on time-dependent quantities is discussed, and empirical results are given to show that the choice of thermal inertia parameter influences the speed with which a system moves through its phase space. The time correlation functions from the simulations were analyzed in terms of current theories for dipolar systems. A functional form is proposed to cover both the longtime and short-time behavior of the time correlation functions of dipoles. The relationship between this functional form and the dielectric function of the Stockmayer system is also discussed.
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Journal
Journal of physical chemistry B : condensed matter, materials, surfaces, interfaces and biophysicalVolume
97Issue
40Pagination
10478 - 10485Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
ISSN
1520-6106eISSN
1520-5207Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
1993, American Chemical SocietyUsage metrics
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