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Article dans une revue

Probing heterogeneous dynamics of a repulsive colloidal glass by time resolved x-ray correlation spectroscopy

Abstract : We present here experimental results obtained by time resolved x-ray correlation spectroscopy,revealing the heterogeneous nature of the dynamics down to the nanoscale in a dense dispersionof magnetic nanoparticles. The dynamical susceptibility, which quantifies the amplitude of thedynamical fluctuations, is investigated in a repulsive colloidal glass. Its value is an order ofmagnitude smaller than the ones found in gels and is length scale independent in theQ-range ofthe x-ray scattering experiment.
Mots-clés : magnetic dynamics
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Article dans une revue
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https://hal.inrae.fr/hal-02669099
Déposant : Migration Prodinra <>
Soumis le : dimanche 31 mai 2020 - 14:20:53
Dernière modification le : mardi 15 septembre 2020 - 10:50:18

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Elie Wandersman, Agnès Duri, A Robert, E Dubois, V Dupuis, et al.. Probing heterogeneous dynamics of a repulsive colloidal glass by time resolved x-ray correlation spectroscopy. Journal of Physics: Condensed Matter, IOP Publishing, 2008, 20 (15), pp.155104_1-155104_7. ⟨10.1088/0953-8984/20/15/155104⟩. ⟨hal-02669099⟩

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