Dynamics of SiO$_2$ glasses

Details Dynamics of SiO$_2$ glasses Dynamics of SiO$_2$ glasses

1998-12-15

arxiv.org/abs/cond-mat/9812255v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

28 pages + 24 eps-files

Scientific paper

10.1103/PhysRevB.60.3182

Results on the dynamics of silica are presented: vibrations and relaxations. Using molecular dynamics, glass structures are generated by rapidly quenching melts below the glass transition. For the local minima of the structures the vibrational density of states is determined, the structures of the eigenmodes are analyzed, and the influence of the single components is discussed. Relaxations are studied in both amorphous SiO$_2$ and silica melts. Our main focus is on the type of relaxation, i.e., whether the main contributions are caused by small atomic displacements, or by bond-breaking processes, e.g. creation and annihilation of dangling bonds. The eigenvector of the relaxations is found to be similar to the low-frequency one.

Affiliated with

Also associated with

No associations

Rating

Dynamics of SiO$_2$ glasses does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamics of SiO$_2$ glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of SiO$_2$ glasses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317403