79 citations · 339 across the 21 of their papers we have counts for
18 papers · 1 filter
Shear induced topological changes of local structure in dense colloidal suspensions
Ratimanasee Sahu, Abhishek Kumar Gupta, Peter Schall +2
Understanding the structural origins of glass formation and mechanical response remains a central challenge in condensed matter physics. Recent studies have identified the local ca…
Identifying structural signature of dynamical heterogeneity via the local softness parameter
Mohit Sharma, Manoj Kumar Nandi, Sarika Maitra Bhattacharyya
In a recent study by some of us, we have proposed a new measure of the structure of a liquid, the softness of the mean-field caging potential, and shown that it can describe the te…
Emergence of cooperatively reorganizing cluster and super-Arrhenius dynamics of fragile supercooled liquids
Ankit Singh, Sarika Maitra Bhattacharyya, Yashwant Singh
In this paper we develop a theory to calculate the structural relaxation time τ α of fragile su percooled liquids. Using the information of the configurational entropy and structur…
A Microscopic Theory of Softness in Supercooled Liquids
Manoj Kumar Nandi, Sarika Maitra Bhattacharyya
We introduce a new measure of the structure of a liquid which is the softness of the mean-field potential developed by us earlier. We find that this softness is sensitive to small…
A Comparative Study of a Class of Mean Field Theories of the Glass Transition
Indranil Saha, Manoj Kumar Nandi, Chandan Dasgupta +1
In a recently developed microscopic mean field theory, we have shown that the dynamics of a system, when described only in terms of its pair structure, can predict the correct dyna…
Comparative study of anomalous size dependence of charged and neutral solute diffusion in water
Sayantan Acharya, Sarika Maitra Bhattacharyya
In this work, we perform a comparative study of the size dependence of diffusion of charged and neutral solutes in water. The neutral solute in water shows a nonmonotonicity in the…
The role of pair correlation function in the dynamical transition predicted by the mode coupling theory
Manoj Kumar Nandi, Atreyee Banerjee, Chandan Dasgupta +1
In a recent study we have found that for a large number of systems the configuration entropy at pair level, , which is primarily determined by the structural information, v…
Validity of the Rosenfeld relationship: A comparative study of the network forming NTW model and other simple liquids
Atreyee Banerjee, Manoj Kumar Nandi, Sarika Maitra Bhattacharyya
In this paper we explore the validity of the Rosenfeld and the Dzugutov relation for the Lennard-Jones (LJ) system, its repulsive counterpart, the WCA system and a network forming…
Effect of total and pair configurational entropy in determining dynamics of supercooled liquids over a range of densities
Atreyee Banerjee, Manoj Kumar Nandi, Srikanth Sastry +1
In this paper, we present a study of supercooled liquids interacting with the Lennard Jones (LJ) potential and the corresponding purely repulsive (Weeks-Chandler-Andersen or WCA) p…
Composition dependence of the glass forming ability in binary mixtures: The role of demixing entropy
Ujjwal Kumar Nandi, Atreyee Banerjee, Suman Chakrabarty +1
We present a comparative study of the glass forming ability of binary systems with varying composition, where the systems have similar global crystalline structure (CsCl+fcc). Bias…
Unraveling the success and failure of mode coupling theory from consideration of entropy
Manoj Kumar Nandi, Atreyee Banerjee, Shiladitya Sengupta +2
We analyze the dynamics of model supercooled liquids in a temperature regime where predictions of mode coupling theory (MCT) are known to be valid qualitatively. In this regime, th…
The role of structure and entropy in determining differences in dynamics for glass formers with different interaction potentials
Atreyee Banerjee, Shiladitya Sengupta, Srikanth Sastry +1
We present a study of two model liquids with different interaction potentials, exhibiting similar structure but significantly different dynamics at low temperatures. By evaluating…
Interplay between crystallization and glass transition in binary Lennard-Jones mixtures
Atreyee Banerjee, Suman Chakrabarty, Sarika Maitra Bhattacharyya
In this work we explore the interplay between crystallization and glass transition in different binary mixtures by changing their inter-species interaction length and also the comp…
Non-monotonic Size Dependence of Diffusion and Levitation Effect: A Mode Coupling Theory Analysis
Manoj Kumar Nandi, Atreyee Banerjee, Sarika Maitra Bhattacharyya
We present a study of diffusion of small tagged particles in a solvent, using mode coupling theory (MCT) analysis and computer simulations. The study is carried out for various int…
The mode-coupling glass transition in a fluid confined by a periodic potential
Saroj Kumar Nandi, Sarika Maitra Bhattacharyya, Sriram Ramaswamy
We show that a fluid under strong spatially periodic confinement displays a glass transition within mode-coupling theory (MCT) at a much lower density than the corresponding bulk s…
Wavenumber dependence of the structural relaxation time in the crossover regime of supercooled liquid dynamics
Sarika Maitra Bhattacharyya, Biman Bagchi, Peter G. Wolynes
As a liquid is progressively supercooled an intriguing weakening of the wavenumber () dependence of the structural relaxation time in the large q limit is observed both i…
Diffusion of small light particles in a solvent of large massive molecules
Rajesh K. Murarka, Sarika Bhattacharyya, Biman Bagchi
We study diffusion of small light particles in a solvent which consists of large heavy particles. The intermolecular interactions are chosen to approximately mimic a water-sucrose…
Orientational and Translational Hopping in Supercooled Liquids and Glasses : Correlated Dynamics in a Free Energy Landscape
S. Bhattacharyya, A. Mukherjee, B. Bagchi
Orientational relaxation (OR) in a viscous, glassy liquid is investigated by carrying out extensive NPT molecular dynamics simulations of isolated ellipsoids in a glass forming bin…