New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation

Details New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation

2000-11-09

arxiv.org/abs/cond-mat/0011147v1

Physics

Condensed Matter

Materials Science

6 pages, 5 postscript figures

Scientific paper

10.1088/0953-8984/12/49/302

Based on {\em ab initio} calculation, we propose a new structure for the fundamental excitation of the reconstructed 30$^\circ$ partial dislocation in silicon. This soliton has a rare structure involving a five-fold coordinated atom near the dislocation core. The unique electronic structure of this defect is consistent with the electron spin resonance signature of the hitherto enigmatic thermally stable R center of plastically deformed silicon. We present the first {\em ab initio} determination of the free energy of the soliton, which is also in agreement with the experimental observation. This identification suggests the possibility of an experimental determination of the density of solitons, a key defect in understanding the plastic flow of the material.

Affiliated with

Also associated with

No associations

Rating

New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation 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 New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Physics of the $30^\circ$ Partial Dislocation in Silicon Revealed through {\em Ab Initio} Calculation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-607515