## 27 Citations

Determination of the Ioffe-Regel limit for vibrational excitations in disordered materials

- Materials Science, Physics
- 1999

Abstract A theoretical analysis nas been made, in terms of the spectral density, of plane-wave vibrational modes propagating in disordered solids. The Ioffe-Regel crossover freauency for vitreous…

Anharmonic damping of terahertz acoustic waves in a network glass and its effect on the density of vibrational states.

- Physics, Materials SciencePhysical review letters
- 2014

It is shown that the temperature variation of the sound damping accounts quantitatively for the temperature dependence of the density of vibrational states.

ERRATUM: Vector vibrations and the Ioffe-Regel crossover in disordered lattices

- Physics
- 2002

The spectral density for vector vibrations in the face-centred cubic lattice with force-constant disorder is analysed within the coherent potential approximation. The phase diagram showing the weak-…

Boson peak and terahertz frequency dynamics of vitreous silica

- Physics
- 2002

This paper describes the progress that has been made in the past decade in the investigation of the peculiar dynamic properties of vitreous silica (v-SiO2) and related glasses in the terahertz (THz)…

Vibrational spectra in glasses

- Mathematics
- 2002

Abstract The findings of X-ray and neutron scattering experiments on amorphous systems are interpreted within the framework of the theory of Euclidean random matrices. This allows us to take into…

Clusters in colloidal systems.

- Materials ScienceThe journal of physical chemistry. B
- 2011

We study the dynamical properties of a model for charged colloidal particles, performing molecular dynamics simulations and observing the behavior of bond persistence functions, self-intermediate…

Computer Simulations of Supercooled Liquids and Glasses

- Physics
- 1998

After a brief introduction to the dynamics of supercooled liquids, we discuss some of the advantages and drawbacks of computer simulations of such systems. Subsequently we present the results of…

Computer simulation of molten silica and related glass forming fluids: recent progress

- Chemistry
- 2007

The structure and dynamics of glass forming fluids are accessible in atomistic detail through molecular dynamics simulation. Although for molten silica and its mixtures with oxides of sodium,…

Dynamics in the Glassy State and Near the Glass Transition of Amorphous Polymers as Studied by Neutron Scattering

- Materials Science
- 2001

This review covers the recent progress of studies on dynamics in the glassy states and near the glass transition of amorphous polymers as revealed by inelastic and quasielastic neutron scattering,…

Numerical Study of the Structural and Thermal Properties of Vitreous Silica

- Physics
- 2000

Abstract We use classical molecular dynamics simulations to study both the structural modifications through the glass transition and the thermal conductivity k of a model silica glass. The first part…

## References

SHOWING 1-6 OF 6 REFERENCES

HIGH FREQUENCY SOUND WAVES IN VITREOUS SILICA

- Physics
- 1998

We report a molecular dynamics simulation study of the sound waves in vitreous silica in the mesoscopic exchanged momentum range. The calculated dynamical structure factors are in quantitative…

Phonons in vitreous silica: Dispersion and localization

- Physics
- 1997

A numerical vibrational-mode analysis has been performed for structural models of vitreous silica constructed using molecular dynamics. Dispersion curves, associated with remnants of phonon-like…

Finite size effects in simulations of glass dynamics.

- PhysicsPhysical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
- 1996

It is shown that in simulations of the dynamics of this strong glass former surprisingly large finite size effects are present, and it is demonstrated that the relaxation times of the incoherent intermediate scattering function and the time dependence of the mean squared displacement are affected.

Investigating the cooling rate dependence of amorphous silica: A computer simulation study

- Materials Science, Physics
- 1996

We use molecular dynamics computer simulations to study the dependence of the properties of amorphous silica on the cooling rate with which the glass has been produced. In particular we show that the…

Force fields for silicas and aluminophosphates based on ab initio calculations.

- ChemistryPhysical review letters
- 1990

A force field based on both microscopic and macroscopic data is derived, which combines accuracy with transferability to other polymorphs and the possibility of parametrizing other elements is demonstrated.

Cooling-rate effects in amorphous silica: A computer-simulation study.

- Materials SciencePhysical review. B, Condensed matter
- 1996

Using molecular-dynamics computer simulations, it is demonstrated that the cooling-rate dependence of microscopic quantities is significantly more pronounced than the one of macroscopic properties, thus demonstrating that the used potential is a good model for silica glass.