Dynamics of the 7 x 7 DAS-reconstructed Silicon (111) Surface

Details Dynamics of the 7 x 7 DAS-reconstructed Silicon (111) Surface Dynamics of the 7 x 7 DAS-reconstructed Silicon (111) Surface

2003-03-20

arxiv.org/abs/cond-mat/0303435v1

Physics

Condensed Matter

latex file of 4 pages and 5 figures

Scientific paper

We studied the dynamics of the reconstructed Si (111) surface using a total-energy-vibrational-spectrum approach based on a non-orthogonal tight-binding Hamiltonian. We first established the size of the supercell sufficient to yield a reliable determination of surface parameters by the structural optimization. The site density of vibrational states (SDOS) for the semi-infinite system (the optimized slab on top of the bulk) was then calculated using the method of real space Green's function. A decomposition scheme for the SDOS that identifies directly coupled vibrations for a given mode was also proposed. Our study has uncovered and elucidated, for the first time, all the important surface dynamical features associated with the dimers, adatoms, stacking faults, and rest atoms.

Affiliated with

Also associated with

No associations

Rating

Dynamics of the 7 x 7 DAS-reconstructed Silicon (111) Surface 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 the 7 x 7 DAS-reconstructed Silicon (111) Surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of the 7 x 7 DAS-reconstructed Silicon (111) Surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-153129