Vibrational density of states of silicon nanoparticles

Details Vibrational density of states of silicon nanoparticles Vibrational density of states of silicon nanoparticles

2010-10-12

arxiv.org/abs/1010.2271v2

Phys. Rev. B 83, 014301 (2010)

Physics

Condensed Matter

Materials Science

7 pages, 5 figure; accepted for publication in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.83.014301

The vibrational density of states of silicon nanoparticles in the range from 2.3 to 10.3 nm is studied with the help of molecular-dynamics simulations. From these simulations the vibrational density of states and frequencies of bulk-like vibrational modes at high-symmetry points of the Brillouin-zone have been derived. The results show an increase of the density of states at low frequencies and a transfer of modes from the high-frequency end of the spectrum to the intermediate range. At the same time the peak of transverse optical modes is shifted to higher frequencies. These observations are in line with previous simulation studies of metallic nanoparticles and they provide an explanation for a previously observed discrepancy between experimental and theoretical data [C. Meier et al., Physica E, 32, 155 (2006)].

Affiliated with

Also associated with

No associations

Rating

Vibrational density of states of silicon nanoparticles 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 Vibrational density of states of silicon nanoparticles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibrational density of states of silicon nanoparticles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-607400