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Phonon Dispersion of Wurtzite CdSe: The Bond Charge Model
Author(s) -
Camacho J.,
Cantarero A.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200007)220:1<233::aid-pssb233>3.0.co;2-8
Subject(s) - wurtzite crystal structure , phonon , brillouin zone , condensed matter physics , ab initio , dispersion (optics) , ab initio quantum chemistry methods , materials science , semiconductor , molecular physics , chemistry , physics , quantum mechanics , optoelectronics , molecule , zinc , metallurgy
The phonon dispersion of wurtzite CdSe is presented along the main directions of the Brillouin zone. The study has been performed by using a bond charge model for wurtzite‐type semiconductors with only six adjustable parameters. The results are compared against neutron scattering data and ab initio calculations. The phonon eigenvectors corresponding to the vibrational modes at the Γ‐point are in very good agreement with the ab initio calculations.