Diffusivity and configurational entropy maxima in short range attractive colloids

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dc.creatorAngelani, Luca
dc.creatorFoffi, Giuseppe
dc.creatorSciortino, Francesco
dc.creatorTartaglia, Piero
dc.date2004-04-25
dc.date.accessioned2026-07-07T06:34:13Z
dc.date.available2026-07-07T06:34:13Z
dc.descriptionWe study tagged particle diffusion at large packing fractions, for a model of particles interacting with a generalized Lennard-Jones 2n-n potential, with large n. The resulting short-range potential mimics interactions in colloidal systems. In agreement with previous calculations for short-range potential, we observe a diffusivity maximum as a function of temperature. By studying the temperature dependence of the configurational entropy -- which we evaluate with two different methods -- we show that a configurational entropy maximum is observed at a temperature close to that of the diffusivity maximum. Our findings suggest a relationbetween dynamics and number of distinct states for short-range potentials.
dc.description4 pages, 3 figures, submited to Physical Review Letter
dc.identifierhttps://arxiv.org/abs/cond-mat/0404604
dc.identifierhttp://arxiv.org/abs/cond-mat/0404604
dc.identifierJ. Phys.: Condens. Matter 17 L113-L119 (2005)
dc.identifierdoi:10.1088/0953-8984/17/12/L02
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99458
dc.subjectSoft Condensed Matter
dc.titleDiffusivity and configurational entropy maxima in short range attractive colloids
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