0000000001176497

AUTHOR

Anders Madsen

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Dynamics of nanoparticles in a supercooled liquid

2008

The dynamic properties of nanoparticles suspended in a supercooled glass forming liquid are studied by x-ray photon correlation spectroscopy. While at high temperatures the particles undergo Brownian motion the measurements closer to the glass transition indicate hyperdiffusive behavior. In this state the dynamics is independent of the local structural arrangement of nanoparticles, suggesting a cooperative behavior governed by the near-vitreous solvent.

Materials scienceCondensed matter physicsDynamics (mechanics)slow dynamicsGeneral Physics and AstronomyNanoparticleX-ray scattering; glass transition; anomalous diffusion; slow dynamicsX-ray scatteringCondensed Matter::Disordered Systems and Neural NetworksSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Condensed Matter::Soft Condensed MatterSolventDynamic light scatteringChemical physicsanomalous diffusionglass transitionCooperative behaviorSupercoolingGlass transitionBrownian motion
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