Lang, G. and Karch, K. and Schmitt, M. and Pavone, P. and Mayer, A. P. and Wehner, R. K. and Strauch, Dieter (1999) Anharmonic line shift and linewidth of the Raman mode in covalent semiconductors. PHYSICAL REVIEW B, 59 (9). pp. 6182-6188. ISSN 1098-0121, 1550-235X
Full text not available from this repository.Abstract
Combining density-functional perturbation theory with the frozen-phonon approach, the anharmonic shift of the Raman frequency of the covalent semiconductors diamond and silicon are determined ab initio. The temperature dependence of the Raman frequency and the contribution of zero-point motion are calculated as well as the Raman linewidth. Corresponding results for germanium have been obtained with the assumption that the quartic anharmonic force constants may be approximated by those of silicon. [S0163-1829(99)13305-8].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPERATURE-DEPENDENCE; MOLECULAR-DYNAMICS; OPTICAL PHONONS; ISOTOPIC-DISORDER; DIAMOND; SCATTERING; SILICON; SPECTRUM; SI; BRILLOUIN; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Dieter Strauch |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Nov 2022 13:36 |
| Last Modified: | 15 Nov 2022 13:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48495 |
Actions (login required)
 |
View Item |
