Intermediate-range order in molten network-forming systems

Intermediate-range order in molten network-forming systems

4 Intermediate-range order in moltennetwork-forming systems Bevan Kieran SharmaUniversity College London. A thesis submitted in partial fulfillment of the requirementsfor the degree of Doctor of Philosophy, November 2009.

Nature of Long-Range Order in Stripe-Forming Systems with Long-Range Repulsive Interactions

Alejandro Mendoza-Coto, Daniel A. Stariolo, and Lucas Nicolao Departamento de Física, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, RS, Brazil Departamento de Física, Universidade Federal do Rio Grande do Sul and National Institute of Science and Technology for Complex Systems, CP 15051, 91501-970 Porto Alegre, RS, Brazil Departamento de Física, Universidade Feder...

Comment on "Nature of Long-Range Order in Stripe-Forming Systems with Long-Range Repulsive Interactions".

We study two dimensional stripe forming systems with competing repulsive interactions decaying as r(-α). We derive an effective Hamiltonian with a short-range part and a generalized dipolar interaction which depends on the exponent α. An approximate map of this model to a known XY model with dipolar interactions allows us to conclude that, for α<2 long-range orientational order of stripes can e...

Intermediate range order in ( Fe , Al ) silicate network glasses : a neutron diffraction and EPSR modeling

The local structural environment and the spatial distribution of iron and aluminum ions in sodosilicate glasses with composition NaFexAl1-xSi2O6 (x = 1, 0.8, 0.5 and 0) is studied by highresolution neutron diffraction combined with structural modeling using the Empirical Potential Structure Refinement (EPSR) code. This work gives evidence of differences in the structural behavior of Al and Fe, ...

Comment on "correlation between dynamic heterogeneity and medium-range order in two-dimensional glass-forming liquids".