Phys. Rev. Lett. 100, 055702 (2008) [4 pages]Dynamics of Nanoparticles in a Supercooled LiquidReceived 30 July 2007; revised 19 December 2007; published 8 February 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.055702
DOI:
10.1103/PhysRevLett.100.055702
PACS:
64.70.P−, 61.05.cf, 64.70.D−
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