Science (American Association for the Advancement of Science), 2000-01, Vol.287 (5451), p.290-293
2000
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Details
- Autor(en) / Beteiligte
- Titel
- Direct Observation of Dynamical Heterogeneities in Colloidal Hard-Sphere Suspensions
- Ist Teil von
- Science (American Association for the Advancement of Science), 2000-01, Vol.287 (5451), p.290-293
- Ort / Verlag
- Washington, DC: American Society for the Advancement of Science
- Erscheinungsjahr
- 2000
- Quelle
- American Association for the Advancement of Science
- Beschreibungen/Notizen
- The real-space dynamics in a model system of colloidal hard spheres was studied by means of time-resolved fluorescence confocal scanning microscopy. Direct experimental evidence for the presence of dynamical heterogeneities in a dense liquid was obtained from an analysis of particle trajectories in two-dimensional slices of the bulk sample. These heterogeneities manifest themselves as a non-Gaussian probability distribution of particle displacements and also affect the onset of long-time diffusive behavior.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0036-8075eISSN: 1095-9203DOI: 10.1126/science.287.5451.290Titel-ID: cdi_proquest_miscellaneous_743174745
- Format
- –
- Schlagworte
- Chemistry, Colloidal state and disperse state, Colloids, Computer Simulation, Evidence, Exact sciences and technology, Fluids, Fractions, Freezing, General and physical chemistry, Helium, Inhalants, Isomers, Light, Liquid helium, Liquids, Material concentration, Materials science, Mobility, Monte Carlo Methods, Non Gaussianity, Observation, Particle diffusion, Physical and chemical studies. Granulometry. Electrokinetic phenomena, Scientific Concepts