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Ordering in granular-rod monolayers driven far from thermodynamic equilibrium

DOI zum Zitieren dieses Dokuments: https://doi.org/10.1103/PhysRevE.91.062207
URN to cite this document: urn:nbn:de:bvb:703-epub-3936-1

Title data

Müller, Thomas ; de las Heras, Daniel ; Rehberg, Ingo ; Huang, Kai:
Ordering in granular-rod monolayers driven far from thermodynamic equilibrium.
In: Physical Review E. Vol. 91 (2015) Issue 6 . - Art.Nr. 062207.
ISSN 1550-2376
DOI: https://doi.org/10.1103/PhysRevE.91.062207

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Abstract

The orientational order in vertically agitated granular-rod monolayers is investigated experimentally and compared quantitatively with equilibrium Monte Carlo simulations and density functional theory. At sufficiently high number density, short rods form a tetratic state and long rods form a uniaxial nematic state. The length-to-width ratio at which the order changes from tetratic to uniaxial is around 7.3 in both experiments and simulations. This agreement illustrates the universal aspects of the ordering of rod-shaped particles across equilibrium and nonequilibrium systems. Moreover, the assembly of granular rods into ordered states is found to be independent of the agitation frequency and strength, suggesting that the detailed nature of energy injection into such a nonequilibrium system does not play a crucial role.

Further data

Item Type: Article in a journal
Keywords: Granular systems; Nonequilibrium and irreversible thermodynamics; Transitions in liquid crystals.
DDC Subjects: 500 Science > 530 Physics
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-3936-1
Date Deposited: 21 Jan 2019 13:37
Last Modified: 21 Jan 2019 13:37
URI: https://epub.uni-bayreuth.de/id/eprint/3936

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