Behavior of bulky ferrofluids in the diluted low-coupling regime: Theory and simulation / Cerda Juan J.,Elfimova Ekaterina,Ballenegger V.,Krutikova Ekaterina,Ivanov Alexey,Holm Christian // PHYSICAL REVIEW E. - 2010. - V. 81, l. 1, 1.

ISSN/EISSN:

2470-0045 / 2470-0053

Type:

Article

Abstract:

A theoretical formalism to predict the structure factors observed in dipolar soft-sphere fluids based on a virial expansion of the radial distribution function is presented. The theory is able to account for cases with and without externally applied magnetic fields. A thorough comparison of the theoretical results to molecular-dynamics simulations shows a good agreement between theory and numerical simulations when the fraction of particles involved in clustering is low; i.e., the dipolar coupling parameter is lambda less than or similar to 2, and the volume fraction is phi less than or similar to 0.25. When magnetic fields are applied to the system, special attention is paid to the study of the anisotropy of the structure factor. The theory reasonably accounts for the structure factors when the Langevin parameter is smaller than 5.

Author keywords:

SMALL-ANGLE NEUTRON; DIPOLAR FERROMAGNETIC LIQUIDS; HARD-SPHERES; MAGNETIC FLUIDS; EQUILIBRIUM PROPERTIES; FERROCOLLOIDS; SCATTERING; FIELD; THERMODYNAMICS; PARTICLES

DOI:

10.1103/PhysRevE.81.011501

Web of Science ID:

ISI:000274003300059

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	011501
EISSN	2470-0053
Keywords-Plus	SMALL-ANGLE NEUTRON; DIPOLAR FERROMAGNETIC LIQUIDS; HARD-SPHERES; MAGNETIC FLUIDS; EQUILIBRIUM PROPERTIES; FERROCOLLOIDS; SCATTERING; FIELD; THERMODYNAMICS; PARTICLES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Fluids \& Plasmas; Physics, Mathematical
ResearcherID-Numbers	MPIP, Theory/I-9884-2014 Cerda, Joan Josep/H-1306-2013 Elfimova, Ekaterina/P-5003-2016 Holm, Christian/C-2134-2009 Ivanov, Alexey/E-4442-2011 Novak, Ekaterina/K-9016-2013
ORCID-Numbers	Cerda, Joan Josep/0000-0003-1132-5989 Holm, Christian/0000-0003-2739-310X Ivanov, Alexey/0000-0001-8239-4039 Novak, Ekaterina/0000-0002-4034-6861 Elfimova, Ekaterian/0000-0002-8941-8184
Funding-Acknowledgement	RFBR {[}08-02-00647]; DFG-RFBR {[}HO 1108/12-1, 06-02-04019]
Funding-Text	This research has been carried out within the financial support of RFBR Grant No. 08-02-00647 and DFG-RFBR Joint Grants No. HO 1108/12-1 and No. 06-02-04019.
Number-of-Cited-References	64
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	6
Journal-ISO	Phys. Rev. E
Doc-Delivery-Number	548XN