| Автор | P Stampfli |
| Автор | K H Bennemann |
| Дата выпуска | 1993-08-16 |
| dc.description | The authors present a theory for the extremely fast instability of the diamond structure of semiconductors in the presence of a dense electron-hole plasma, which can be generated by an intense laser pulse. They find that the transverse acoustic phonons become unstable if more than 8% of the valence electrons are excited into the conduction band. Furthermore, if 15-20% of the valence electrons are excited, the cubic symmetry of the lattice is destroyed within less than 200 fs after the laser pulse. The crystal itself melts a few ps later. The results are in good agreement with experiments performed on Si and GaAs. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Theory for the time dependence of the laser-induced instability of the diamond structure of Si and GaAs |
| Тип | paper |
| DOI | 10.1088/0953-8984/5/33A/047 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 5 |
| Первая страница | A173 |
| Последняя страница | A174 |
| Аффилиация | P Stampfli; Freie Univ. Berlin, Inst. for Theor. Phys., Germany |
| Аффилиация | K H Bennemann; Freie Univ. Berlin, Inst. for Theor. Phys., Germany |
| Выпуск | 33A |
