252 citations · 314 across the 5 of their papers we have counts for
4 papers · 1 filter
Dynamics of water and ethanol in graphene oxide
Gobin R. Acharya, Madhusudan Tyagi, Eugene Mamontov +1
We utilized the momentum transfer(Q)-dependence of Quasi-Elastic Neutron Scattering (QENS) to reveal the dynamics of water and ethanol confined in Graphene Oxide (GO) powder or mem…
Short Time and Structural Dynamics in Polypropylene Glycol Nanocomposite
M. Tyagi, R. Casalini, C. M. Roland
The dynamics of polypropylene glycol, both neat and attached to silica nanoparticles, were investigated using elastic neutron backscattering and dielectric spectroscopy. The mean s…
Johari-Goldstein Relaxation Events Are Metabasin Transitions
Marcus T Cicerone, Madhusudan Tyagi
We show that by representing quasi-elastic and inelastic neutron scattering from propylene carbonate (PC) with an explicitly heterogeneous model, we recover two distinct dynamic si…
Picosecond Dynamic Heterogeneity, Hopping and Johari-Goldstein Relaxation in Glassforming Liquids
Marcus T. Cicerone, Qin Zhong, Madhusudan Tyagi
We show that incoherent quasi-elastic neutron scattering (QENS) from molecular liquids reveals a two-state dynamic heterogeneity on a 1 ps timescale, where molecules are either hig…