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