Communication: Unusual dynamics of hybrid nanoparticles and their binary mixtures | Zendy

Sunita Srivastava | Zendy; Sivasurender Chandran | Zendy; A. K. Kandar | Zendy; C. Sarika | Zendy; J. K. Basu | Zendy; Suresh Narayanan | Zendy; Alec Sandy | Zendy

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Communication: Unusual dynamics of hybrid nanoparticles and their binary mixtures

Author(s) -

Sunita Srivastava,

Sivasurender Chandran,

A. K. Kandar,

C. Sarika,

J. K. Basu,

Suresh Narayanan,

Alec Sandy

Publication year - 2010

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.3495480

Subject(s) - nanoparticle , binary number , vitrification , volume fraction , dynamics (music) , relaxation (psychology) , materials science , function (biology) , chemical physics , volume (thermodynamics) , thermodynamics , nanotechnology , chemistry , physics , mathematics , composite material , psychology , social psychology , arithmetic , evolutionary biology , nuclear physics , acoustics , biology

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

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