The phonon dispersion of wurtzite‐ZnO revisited
Inelastic neutron scattering measurements are reported for the optical phonon branches of wurtzite ZnO. The experimental data are in excellent agreement with the ab-initio calculations for the phonon dispersion relations based on linear response theory. Discrepancies between theory and present data...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universidad de Valladolid |
| Repositorio: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/65315 |
| Acceso en línea: | https://doi.org/10.1002/pssb.200675145 https://uvadoc.uva.es/handle/10324/65315 |
| Access Level: | acceso abierto |
| Sumario: | Inelastic neutron scattering measurements are reported for the optical phonon branches of wurtzite ZnO. The experimental data are in excellent agreement with the ab-initio calculations for the phonon dispersion relations based on linear response theory. Discrepancies between theory and present data observed for the longitudinal optic branches along the [100] and [001] directions are attributed to an inaccurate description of the dielectric constant of ZnO and, consequently, the crystal- and electric-field splitting. |
|---|