Properties of the energy landscape of network models for covalent glasses

Physics – Condensed Matter – Statistical Mechanics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

RevTeX, 19 pages, 7 figures

Scientific paper

10.1088/0305-4470/31/40/011

We investigate the energy landscape of two dimensional network models for covalent glasses by means of the lid algorithm. For three different particle densities and for a range of network sizes, we exhaustively analyse many configuration space regions enclosing deep-lying energy minima. We extract the local densities of states and of minima, and the number of states and minima accessible below a certain energy barrier, the 'lid'. These quantities show on average a close to exponential growth as a function of their respective arguments. We calculate the configurational entropy for these pockets of states and find that the excess specific heat exhibits a peak at a critical temperature associated with the exponential growth in the local density of states, a feature of the specific heat also observed in real glasses at the glass transition.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Properties of the energy landscape of network models for covalent 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 Properties of the energy landscape of network models for covalent glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of the energy landscape of network models for covalent glasses will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-546045

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.