Zobrazeno 1 - 10
of 568
pro vyhledávání: '"Jullien, R"'
Publikováno v:
Phys. Rev. Lett. 90, 170602 (2003)
Encouraged by experiments on $^4$He in aerogels, we confine planar spins in the pores of simulated aerogels (diffusion limited cluster-cluster aggregation) in order to study the effect of quenched disorder on the critical behavior of the three-dimens
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303470
To find the origin of the diffusion channels observed in sodium-silicate glasses, we have performed classical molecular dynamics simulations of Na$_2$O--4SiO$_2$ during which the mass of the Si and O atoms has been multiplied by a tuning coefficient.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212058
We have adapted classical molecular dynamics to study the structural and dynamical properties of amorphous silica surfaces. Concerning the structure, the density profile exhibits oscillations perpendicularly to the surface as observed in liquid metal
Externí odkaz:
http://arxiv.org/abs/cond-mat/0106497
Publikováno v:
Physical Review B, 64, 233321 (2001)
The classical two-dimensional problem of non-interacting electrons scattered by short-range impurity centers in the presence of magnetic field is investigated both analytically and numerically. A strong magnetoresistance exists in such a system, due
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103490
We vary the amplitude of the long-range Coulomb forces within a classical potential describing a model silica glass and study the consequences on the structure and dynamics of the glass, via molecular dynamics simulations. This model allows us to fol
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009077
Autor:
Jund, P., Jullien, R.
We perform classical molecular-dynamics simulation to study the effect of densification on the vibrational spectrum of a model silica glass. We concentrate this study on the so-called Boson peak and compare our results, obtained from a direct diagona
Externí odkaz:
http://arxiv.org/abs/cond-mat/0005169
We report here on experimental and numerical studies of the influence of surfactants on mineral gel synthesis. The modification of the gel structure when the ratios water-precursor and water-surfactant vary is brought to the fore by fractal dimension
Externí odkaz:
http://arxiv.org/abs/chem-ph/9511002
Autor:
Jullien, R., Hasmy, A.
The Diffusion-Limited Cluster-Cluster Aggregation (DLCA) model is modified by including cluster deformations using the {\it bond fluctuation} algorithm. From 3$d$ computer simulations, it is shown that, below a given threshold value $c_g$ of the volu
Externí odkaz:
http://arxiv.org/abs/cond-mat/9504041
Publikováno v:
In Cement and Concrete Composites 2001 23(2):153-156
Publikováno v:
European Physical Journal B: Condensed Matter. Jun2003, Vol. 33 Issue 3, p355-363. 9p. 6 Diagrams, 1 Chart, 4 Graphs.