Nonlinear Thermophoresis beyond Local Equilibrium Criterion

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dc.creatorDuhr, Stefan
dc.creatorBraun, Dieter
dc.date2006-09-21
dc.date.accessioned2026-07-07T07:23:40Z
dc.date.available2026-07-07T07:23:40Z
dc.descriptionThermophoresis (thermodiffusion, Soret effect) moves molecules along thermal gradients. We measure its phenomenological linear drift relation by single particle tracking in convection-free settings. For moderate thermal gradients, drift velocity depends linearly on the gradient. However, for strong thermal gradients, we find a nonlinear dependence of the drift on the applied gradient for large Soret coefficient and particle radius. Interestingly, the onset of the nonlinearity coincides with a local disequilibrium of the particle. Nonlinear thermophoresis resolves several fundamental contradictions between thermophoretic experiments and theory.
dc.description9 pages, 4 Figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609554
dc.identifierhttp://arxiv.org/abs/cond-mat/0609554
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/116065
dc.subjectStatistical Mechanics
dc.subjectMesoscale and Nanoscale Physics
dc.titleNonlinear Thermophoresis beyond Local Equilibrium Criterion
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