Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide

Details Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide

1999-09-13

arxiv.org/abs/cond-mat/9909182v1

Physics

Condensed Matter

Materials Science

9 pages including 3 figures, accepted in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.83.3230

The atomic structure of icosahedral B$_4$C boron carbide is determined by comparing existing infra-red absorption and Raman diffusion measurements with the predictions of accurate {\it ab initio} lattice-dynamical calculations performed for different structural models. This allows us to unambiguously determine the location of the carbon atom within the boron icosahedron, a task presently beyond X-ray and neutron diffraction ability. By examining the inter- and intra-icosahedral contributions to the stiffness we show that, contrary to recent conjectures, intra-icosahedral bonds are harder.

Affiliated with

Also associated with

No associations

Rating

Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide 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 Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-464359