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Communication: Unusual dynamics of hybrid nanoparticles and their binary mixtures

Srivastava, S and Chandran, Sivasurender and Kandar, AK and Sarika, CK and Basu, JK and Narayanan, S and Sandy, A (2010) Communication: Unusual dynamics of hybrid nanoparticles and their binary mixtures. In: Journal of Chemical Physics, The, 133 (15).

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Abstract

We present the results on the evolution of microscopic dynamics of hybrid nanoparticles and their binary mixtures as a function of temperature and wave vector. We find unexpectedly a nonmonotonic dependence of the structural relaxation time of the nanoparticles as a function of the morphology. In binary mixtures of two of the largest nanoparticles studied, we observe re-entrant vitrification as a function of the volume fraction of the smaller nanoparticle, which is unusual for such high diameter ratio. Possible explanation for the observed behavior is provided. (C) 2010 American Institute of Physics. doi:10.1063/1.3495480]

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Keywords: anelastic relaxation, annealing, filled polymers, gold, nanocomposites, nanofabrication, organic-inorganic hybrid materials, particle reinforced composites, photon correlation spectroscopy, self-assembly, surface morphology, X-ray scattering
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 19 Nov 2010 10:20
Last Modified: 19 Nov 2010 10:20
URI: http://eprints.iisc.ernet.in/id/eprint/33839

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