Physics – Condensed Matter – Materials Science
Scientific paper
2004-05-14
Physics
Condensed Matter
Materials Science
Scientific paper
10.1103/PhysRevB.70.165201
We present a tight-binding calculation that, for the first time, accurately describes the structural, vibrational and elastic properties of amorphous silicon. We compute the interatomic force constants and find an unphysical feature of the Stillinger-Weber empirical potential that correlates with a much noted error in the radial distribution function associated with that potential. We also find that the intrinsic first peak of the radial distribution function is asymmetric, contrary to usual assumptions made in the analysis of diffraction data. We use our results for the normal mode frequencies and polarization vectors to obtain the zero-point broadening effect on the radial distribution function, enabling us to directly compare theory and a high resolution x-ray diffraction experiment.
Bernstein Nicholas
Feldman Joseph L.
Mehl Michael J.
Papaconstantopoulos Dimitrios A.
No associations
LandOfFree
Tight-binding study of structure and vibrations of amorphous silicon 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 Tight-binding study of structure and vibrations of amorphous silicon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tight-binding study of structure and vibrations of amorphous silicon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-671228