On the self-assembly of net-like nanostructures in ferrofluids / Elkady Ashraf S.,Iskakova Larisa,Zubarev Andrey // PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS. - 2015. - V. 428, l. . - P. 257-265.

ISSN/EISSN:

0378-4371 / 1873-2119

Type:

Article

Abstract:

Understanding the physical forces that govern nanoparticles self-assembly is central to the ability to engineer super-nanostructures for advanced nanotechnology applications. Magnetic force represents one of such important forces that is responsible for structural transformations and condensation in ferrofluids (FF). In this work, we study internal structural transformations in FF in the absence of external magnetic field by introducing the first direct statistical model that takes into account formation of linear chains, Y-forks and net-like nanostructures. The results show that, in agreement with experiments, when the concentration of the magnetic nanoparticles and their magnetic interaction energy are small enough, majority of the particles are united in individual linear chains. But, when these parameters exceed some threshold magnitude, the main particles population switches to net-like nanostructures. These results highlight the importance of magnetic dipole interactions in the absence of external magnetic field, and their essential role in the bottom-up construction of hierarchical nano-architectures of viable fundamental and practical implications. (C) 2015 Elsevier B.V. All rights reserved.

Author keywords:

Ferrofluids; Self-assembly; Dipole interactions; Condensation; Chains; Net-like nanostructures DIPOLAR HARD-SPHERES; MAGNETIC FLUIDS; PHASE-TRANSITION; NANOPARTICLES; PARTICLES; LIQUID; NANOWIRES; FERROGELS; NETWORKS; CLUSTERS

DOI:

10.1016/j.physa.2015.01.053

Web of Science ID:

ISI:000352328100024

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN 15
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-2119
Keywords-Plus	DIPOLAR HARD-SPHERES; MAGNETIC FLUIDS; PHASE-TRANSITION; NANOPARTICLES; PARTICLES; LIQUID; NANOWIRES; FERROGELS; NETWORKS; CLUSTERS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	aelkady@kau.edu.sa
ResearcherID-Numbers	Faculty of, Sciences, KAU/E-7305-2017
Funding-Acknowledgement	Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah {[}247-004-D1433]; DSR; Russian Fund of Fundamental investigations {[}13-02-91052, 13-01-96047, 14-19-00989]; Program of the Ministry of Education of the Russian Federation {[}3.12.2014/K]; Act 211 Government of the Russian Federation {[}02.A03.21.0006]
Funding-Text	This work was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under grant No. (247-004-D1433). The authors, therefore, acknowledge with thanks DSR technical and financial support.; A.Z. and L.I. are grateful, for the financial support, the Russian Fund of Fundamental investigations, projects 13-02-91052, 13-01-96047 and 14-19-00989; by the Program of the Ministry of Education of the Russian Federation (project No. 3.12.2014/K), by the Act 211 Government of the Russian Federation No. 02.A03.21.0006.
Number-of-Cited-References	47
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	30
Journal-ISO	Physica A
Doc-Delivery-Number	CF1SL