Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102398
Title: Pair correlations in a bidisperse ferrofluid in an external magnetic field: Theory and computer simulations
Authors: Nekhoroshkova, Y. E.
Goldina, O. A.
Camp, P. J.
Elfimova, E. A.
Ivanov, A. O.
Issue Date: 2014
Publisher: Maik Nauka-Interperiodica Publishing
Citation: Pair correlations in a bidisperse ferrofluid in an external magnetic field: Theory and computer simulations / Y. E. Nekhoroshkova, O. A. Goldina, P. J. Camp, et al. — DOI 10.1134/S1063776114030066 // Journal of Experimental and Theoretical Physics. — 2014. — Vol. 118. — Iss. 3. — P. 442-456.
Abstract: The pair distribution function g(r) for a ferrofluid modeled by a bidisperse system of dipolar hard spheres is calculated. The influence of an external uniform magnetic field and polydispersity on g(r) and the related structure factor is studied. The calculation is performed by diagrammatic expansion methods within the thermodynamic perturbation theory in terms of the particle number density and the interparticle dipole–dipole interaction strength. Analytical expressions are provided for the pair distribution function to within the first order in number density and the second order in dipole–dipole interaction strength. The constructed theory is compared with the results of computer (Monte Carlo) simulations to determine the range of its validity. The scattering structure factor is determined using the Fourier transform of the pair correlation func-tion g(r) – 1. The influence of the granulometric composition and magnetic field strength on the height and position of the first peak of the structure factor that is most amenable to an experimental study is analyzed. The data obtained can serve as a basis for interpreting the experimental small[1]angle neutron scattering results and determining the regularities in the behavior of the structure factor, its dependence on the fractional com-position of a ferrofluid, interparticle correlations, and external magnetic field. © Pleiades Publishing, Inc., 2014.
Keywords: MAGNETIC FIELDS
MONTE CARLO METHODS
NEUTRON SCATTERING
PERTURBATION TECHNIQUES
EXTERNAL MAGNETIC FIELD
GRANULOMETRIC COMPOSITIONS
INTER-PARTICLE CORRELATIONS
MAGNETIC FIELD STRENGTHS
PAIR DISTRIBUTION FUNCTIONS
PARTICLE NUMBER DENSITY
THERMODYNAMIC PERTURBATION THEORY
UNIFORM MAGNETIC FIELDS
DISTRIBUTION FUNCTIONS
URI: http://hdl.handle.net/10995/102398
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84926373893
PURE ID: 352715
8ed47186-b84e-4261-9f40-157c5a92d351
ISSN: 10637761
DOI: 10.1134/S1063776114030066
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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