1 citations · 1 across the 9 of their papers we have counts for
9 papers
Glassy Dynamics in a Molecular Liquid
Shubham Kumar, Sarmistha Sarkar, Biman Bagchi
A universal dynamical crossover temperature, Tcr, in glassy liquids, associated with the α-\b{eta} bifurcation temperature, TB, has been observed in dielectric spectroscopy and oth…
Inherent structure analysis reveals origin of breakdown of Stokes-Einstein relation in aqueous binary mixtures
Shubham Kumar, Sarmistha Sarkar, Biman Bagchi
We show by inherent structure (IS) analysis that the sharp composition dependent breakdown of the Stokes-Einstein relation correlates surprisingly well with an equally sharp non-mo…
Translation-Rotation Coupling in the Dynamics of Linear Molecules in Water
Anjali S Nair, Puja Banerjee, Sarmistha Sarkar +1
We study by computer simulations the coupled rotational and translational dynamics of three important linear diatomic molecules, namely, carbon monoxide (CO), nitric oxide (NO) and…
Transport in a binary mixture of non-spherical molecules: Is hydrodynamics at fault?
Sarmistha Sarkar, Tuhin Samanta, Biman Bagchi
We consider a new class of model systems to study systematically the role of molecular shape in the transport properties of dense liquids. Our model is a liquid binary mixture wher…
How universal is the Lindemann criteria in melting of Lennard-Jones polydisperse solids?
Sarmistha Sarkar, Chandramohan Jana, Biman Bagchi
It is commonly believed that melting occurs when mean square displacement (MSD) of a particle of crystalline solid exceeds a threshold value. This is known as the Lindemann criteri…
Nanoscale heterogeneous phase separation kinetics in binary mixtures: Multistage dynamics
Milan K. Hazra, Sarmistha Sarkar, Biman Bagchi
In order to find a measure of the dynamical features of phase separation kinetics during spinodal decomposition of a liquid binary mixture (like water and cyclohexane , water and 2…
Melting/freezing transition in polydisperse Lennard-Jones system: Remarkable agreement between predictions of inherent structure, bifurcation phase diagram, Hansen-Verlet rule and Lindemann criteria
Sarmistha Sarkar, Rajib Biswas, Partha Pratim Ray +1
We use polydispersity in size as a control parameter to explore certain aspects of melting and freezing transitions in a system of Lennard-Jones spheres. Both analytical theory and…
Terminal polydispersity in the crystallization of polydisperse Lennard-Jones liquid
Sarmistha Sarkar, Mantu Santra, Biman Bagchi
We find through computer simulations that the fractional volume change on freezing of polydisperse Lennard-Jones liquid decreases with increasing polydispersity and approaches zero…
Correlation between inherent structures and phase separation mechanism in binary mixtures
Sarmistha Sarkar, Biman Bagchi
Binary mixtures are known to phase separate via both nucleation and spinodal decomposition, depending on the initial composition and extent of the quench. Here we develop an energy…