54 citations · 132 across the 14 of their papers we have counts for
8 papers · 1 filter
Elasticity in crystals with high density of local defects : insights from ultra-soft colloids
Saswati Ganguly, Gaurav Prakash Shrivastav, Shang-Chun Lin +5
In complex crystals close to melting or at finite temperatures, different types of defects are ubiquitous and their role becomes relevant in the mechanical response of these solids…
Plastic deformation of a permanently bonded network: stress relaxation by pleats
Saswati Ganguly, Debankur Das, Jürgen Horbach +3
We show that a flat two dimensional network of connected vertices, when stretched, may deform plastically by producing `pleats'; system spanning linear structures with width compar…
Translationally invariant colloidal crystal templates
Pankaj Popli, Saswati Ganguly, Surajit Sengupta
We show that dynamic, feed-back controlled optical traps, whose positions depend on the instantaneous local configuration of particles in a pre-determined way, can stabilise colloi…
Contrasting the dynamics of elastic and non-elastic deformations across an experimental colloidal Martensitic transition
Saswati Ganguly, Priti S. Mohanty, Peter Schurtenberger +2
We present a framework to segregate the roles of elastic and non-elastic deformations in the examination of real-space experiments of solid-solid Martensitic transitions. The Marte…
Excess vibrational modes of a crystal in an external non-affine field
Saswati Ganguly, Surajit Sengupta
Thermal displacement fluctuations in a crystal may be classified as either "affine" or "non-affine". While the former couples to external stress with familiar consequences, the res…
Equilibrium and dynamic pleating of a crystalline bonded network
Saswati Ganguly, Jürgen Horbach, Peter Sollich +3
We describe a phase transition that gives rise to structurally non-trivial states in a two-dimensional ordered network of particles connected by harmonic bonds. Monte Carlo simulat…
Amorphization of a crystalline solid by plastic deformation
Saswati Ganguly, Juergen Horbach, Peter Sollich +2
We demonstrate that plastic deformation in solids is associated with a dynamic transition that is reminiscent to the transition from a superconducting to a mixed phase in Type II s…
Statistics of non-affine defect precursors: tailoring defect densities in colloidal crystals using external fields
Saswati Ganguly, Surajit Sengupta, Peter Sollich
Coarse-graining atomic displacements in a solid produces both local affine strains and "non-affine" fluctuations. Here we study the equilibrium dynamics of these coarse grained qua…