Communication: Unusual dynamics of hybrid nanoparticles and their binary mixtures |
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Authors: | Srivastava S Chandran Sivasurender Kandar A K Sarika C K Basu J K Narayanan S Sandy A |
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Institution: | Department of Physics, Indian Institute of Science, Bangalore 560 012, India. |
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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. |
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