Density functional theory of freezing for soft interactions in two dimensions

A density functional theory of two-dimensional freezing is presented for a soft interaction potential that scales as inverse cube of particle distance. This repulsive potential between parallel, induced dipoles is realized for paramagnetic colloids on an interface, which are additionally exposed to...

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Bibliographic Details
Published in:	Europhysics letters Vol. 75; no. 4; pp. 583 - 589
Main Authors:	Teeffelen, S. van, Likos, C. N, Hoffmann, N, Löwen, H
Format:	Journal Article
Language:	English
Published:	IOP Publishing 01-08-2006 EDP Sciences
Subjects:	64.10.+h 64.70.Dv 82.70.Dd
Online Access:	Get full text
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Summary:	A density functional theory of two-dimensional freezing is presented for a soft interaction potential that scales as inverse cube of particle distance. This repulsive potential between parallel, induced dipoles is realized for paramagnetic colloids on an interface, which are additionally exposed to an external magnetic field. An extended modified weighted density approximation which includes correct triplet correlations in the liquid state is used. The theoretical prediction of the freezing transition is in good agreement with experimental and simulation data.
Bibliography:	istex:D0646945225CC24B060875471F75A4B28E69F328 ark:/67375/80W-M8N6D93F-G publisher-ID:epl9480 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0295-5075 1286-4854
DOI:	10.1209/epl/i2006-10140-7