期刊
PHYSICAL REVIEW E
卷 80, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.80.021403
关键词
Brownian motion; damping; deformation; hydrodynamics; mesoscopic systems
资金
- MICINN [MAT2006-12918-C05-01-02, 05]
- ERDF Funds [P07-FQM-02496]
We study the nondiffusive Brownian motion of both rigid and deformable mesoscopic particles by cross-correlated dynamic light scattering with microsecond temporal resolution. Whereas rigid particles show the classical long-time tail prediction, the transition to diffusive motion of deformable particles presents a striking behavior not explained by the existing hydrodynamic treatments. This observation can be interpreted in terms of a damped oscillatory deformational motion on time scales of the order of the Brownian time. Finally, we show that the nondiffusive Brownian motion depends on the specific flexibility of the particles.
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