Novita, Deassy I., Boolchand, P., Malki, Mohammed, Micoulaut, Matthieu
Raman scattering, IR reflectance and modulated DSC measurements are performed on specifically prepared dry (AgI)x(AgPO3)1-x glasses over a wide range of compositions 0 < x < 0.60. A reversibility...
A low temperature Monte Carlo dynamics of a Keating like oscillator model is used to study the relationship between the nature of glasses from the viewpoint of rigidity, and the strong-fragile...
Rigidity and intermediate phases in glasses driven by speciation (2006)
The rigid to floppy transitions and the associated intermediate phase in glasses are studied in the case where the local structure is not fully determined from the macroscopic concentration. The...
Structure of densified germanium dioxide (2003)
Classical molecular dynamics simulations are used to study the structure of densified germanium dioxide ($GeO_2$). It is found that the coordination number of germanium changes with increasing...
Comment on "microscopic theory of network glasses" (2003)
Micoulaut, Matthieu, Boolchand, Punit
Calorimetric experiments on network glasses provide information on the ergodicity (landscape) temperature of supercooled liquids and can be compared with a recent theory developed by Hall and Wolynes...
Intermediate phase in molecular networks and solid electrolytes (2002)
There is growing evidence that electronic and molecular networks present some common universal properties, among which the existence of a self-organized intermediate phase. In glasses, the latter is...
Subj-class: Disordered Systems and Neural Networks
Solvable models of Glass Transition (1999)
Simple statistical agglomeration models can provide a universal link between the local structure and the glass transition temperature in network glasses. We first stress the physical features of the...
Glass transition temperature variation, cross-linking and structure in network glasses (1999)
Micoulaut, Matthieu, Naumis, Gerardo G.
We give general topological rules which very accurately predict the chemical trends in glass transition temperature $T_g$ variation as a function of cross-linking. In multicomponent glasses, these...
Nucleation model for the description of glass formation (1998)
We present in this letter a model of glass formation using energy barriers and a crystal nucleation process. We then analyze the corresponding dynamical equation in the vicinity of the stationary...
In this article, we present a universal relationship between the glass transition temperature $T_g$ and the local glass structure. The derivation of the simplest expression of this relationship and...