Equilibrium properties of a bidisperse ferrofluid with chain aggregates: theory and computer simulations / Holm Christian,Ivanov Alexey,Kantorovich Sofia,Pyanzina Elena,Reznikov Evgeniy // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2006. - V. 18, l. 38, SI. - P. S2737-S2756.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

In this paper we investigate a bidisperse model ferrofluid, where the aggregates are treated as flexible chains, under the influence of an arbitrary valued external magnetic field. An extensive comparison of the theoretical predictions to the results of the computer simulations is provided. Both magnetostatic properties and structural observables are investigated with the help of the newly developed theoretical approach and molecular dynamic simulations. It is shown that the results of the cluster analysis are very sensitive to the cluster definition. Here we use two different criteria for the particles to be bound: an energy criterion which is slightly different in the theory and simulations due to technical problems, and an entropy criterion which is the same for the molecular dynamics and theoretical model. This enables us to compare qualitatively and quantitatively theoretical and numerical microstructural observables, as well as the macro properties of the bidisperse ferrofluids. Finally, an answer to the question which chain criterion should actually be used is provided in this paper.

Author keywords:

MAGNETIC FLUIDS; DIPOLAR FLUIDS; FERROCOLLOIDS; SYSTEMS; FIELD

DOI:

10.1088/0953-8984/18/38/S14

Web of Science ID:

ISI:000241257800015

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP 27
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Keywords-Plus	MAGNETIC FLUIDS; DIPOLAR FLUIDS; FERROCOLLOIDS; SYSTEMS; FIELD
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	c.holm@fias.uni-frankfurt.de alexey.ivanov@usu.ru sue.kantorovich@usu.ru snegn\_bars@mail.ru reznikov@fias.uni-frankfurt.de
ResearcherID-Numbers	Holm, Christian/C-2134-2009 Kantorovich, Sofia/H-4586-2011 Ivanov, Alexey/E-4442-2011 MPIP, Theory/I-9884-2014
ORCID-Numbers	Holm, Christian/0000-0003-2739-310X Kantorovich, Sofia/0000-0001-5700-7009 Ivanov, Alexey/0000-0001-8239-4039
Number-of-Cited-References	34
Usage-Count-Since-2013	23
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	094RX