The 12 external and the 4 lowest internal phonon dispersion branches in d10-anthracene at 12K
- 20 April 1982
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 15 (11), 2353-2365
- https://doi.org/10.1088/0022-3719/15/11/016
Abstract
By inelastic neutron scattering from deuterated anthracene the authors determined the 16 lowest dispersion branches (including 4 internal modes) in the symmetry directions ( xi 00), (0 xi 0) and (00 xi ) and 5 doubly degenerate branches in the (0.5 xi 0) direction. The results agree reasonably well with optical data. Lattice dynamical calculations including the lowest intramolecular modes by first-order perturbation theory agree qualitatively with the experimental results.Keywords
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