| Автор | N W Grimes |
| Автор | P J O'Connor |
| Автор | P Thompson |
| Дата выпуска | 1978-07-14 |
| dc.description | The interpretation of the infrared spectrum from MgAl<sub>2</sub>O<sub>4</sub> has been the subject of some controversy. Recent proposals by Striefler and Boldish (1978) contradict an earlier theoretical analysis of the vibrational spectrum according to which there are only nine translatory optic modes (3 longitudinal+3*2 transverse). Re-examination of the data derived from a Kramers-Kronig transformation of the single crystal reflectance spectrum shows that the latter is more consistent with experiment and with the Lyddane-Sachs-Teller relation. It is concluded that there can be, at most, three longitudinal mode-transverse mode splittings at zero wavevector, and that, of these, two are clearly associated with the strong infrared absorption peaks at 670 and 485 cm<sup>-1</sup> respectively. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Comments on the interpretation of the infrared spectrum from MgAl<sub>2</sub>O<sub>4</sub> spinel |
| Тип | lett |
| DOI | 10.1088/0022-3719/11/13/002 |
| Print ISSN | 0022-3719 |
| Журнал | Journal of Physics C: Solid State Physics |
| Том | 11 |
| Первая страница | L505 |
| Последняя страница | L507 |
| Аффилиация | N W Grimes; Phys. Dept., Univ. of Aston, Birmingham, UK |
| Аффилиация | P J O'Connor; Phys. Dept., Univ. of Aston, Birmingham, UK |
| Аффилиация | P Thompson; Phys. Dept., Univ. of Aston, Birmingham, UK |
| Выпуск | 13 |
