Self-assembly of colloidal bands driven by a periodic external field

Journal Article · Thu Jan 21 00:00:00 EST 2016 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4939951· OSTI ID:22493674

Nunes, André S.; Araújo, Nuno A. M.,; Telo da Gama, Margarida M. ^[1]

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1. Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, P-1749-016 Lisboa, Portugal and Centro de Física Teórica e Computacional, Universidade de Lisboa, P-1749-016 Lisboa (Portugal)

We study the formation of bands of colloidal particles driven by periodic external fields. Using Brownian dynamics, we determine the dependence of the band width on the strength of the particle interactions and on the intensity and periodicity of the field. We also investigate the switching (field-on) dynamics and the relaxation times as a function of the system parameters. The observed scaling relations were analyzed using a simple dynamic density-functional theory of fluids.

• OSTI ID: 22493674
• Journal Information: Journal of Chemical Physics, Vol. 144, Issue 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BROWNIAN MOVEMENT
COLLOIDS
DENSITY FUNCTIONAL METHOD
ELECTROMAGNETIC FIELDS
FLUIDS
PARTICLES
PERIODICITY