Flow induced crystallisation of penetrable particles
- Scacchi, Alberto Department of Physics, University of Fribourg, Switzerland
- Brader, Joseph M. Department of Physics, University of Fribourg, Switzerland
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24.02.2018
Published in:
- Journal of Physics: Condensed Matter. - 2018, vol. 30, no. 9, p. 095102
English
For a system of Brownian particles interacting via a soft exponential potential we investigate the interaction between equilibrium crystallisation and spatially varying shear flow. For thermodynamic state points within the liquid part of the phase diagram, but close to the crystallisation phase boundary, we observe that imposing a Poiseuille flow can induce nonequilibrium crystalline ordering in regions of low shear gradient. The physical mechanism responsible for this phenomenon is shear-induced particle migration, which causes particles to drift preferentially towards the center of the flow channel, thus increasing the local density in the channel center. The method employed is classical dynamical density functional theory.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 309087
- DOI 10.1088/1361-648X/aaaa10
- Persistent URL
- https://folia.unifr.ch/unifr/documents/306642
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