Title
Melting properties of two-dimensional multi-species colloidal systems in a parabolic trap Melting properties of two-dimensional multi-species colloidal systems in a parabolic trap
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : B : condensed matter and complex systems. - Berlin
Volume/pages
83(2011) :4 , p. 499-505
ISSN
1434-6028
ISI
000296633700013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The angular and radial melting properties of two-dimensional classical systems consisting of different types of particles confined in a parabolic trap are studied through modified Monte Carlo simulations. A universal behavior of the angular melting process is found, which occurs in multiple steps due to shell depended melting temperatures. The melting sequence of the different shells is determined by two major factors: (1) the confinement strength which each shell is subjected to, and (2) the specific structure of each shell. Further, a continuous radial disordering of the particle types forming a single circular shell is found and analyzed. This phenomenon has never been observed before in two-dimensional mono-dispersive systems. This continuous radial disordering results from the high energy barrier between different particle types in multi-species systems.
E-info
https://repository.uantwerpen.be/docman/iruaauth/145434/3eef37eb9a2.pdf
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