Abstract
The nonradiative relaxation dynamics of forsterite was investigated by studying different phonon modes using time-resolved Raman spectroscopy. We found that only the 225, 335, and 370 cm-1 anti-Stokes Raman lines exhibit changes in their intensity at various pump-probe delay times indicating the presence of nonequilibrium phonon populations. The experiments were performed at room and liquid nitrogen temperatures. A rate equations analysis was used to describe the dynamics of the ion-lattice system. The nonradiative relaxation time and the phonon lifetimes were estimated by fitting to the experimental data.
Original language | English (US) |
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Pages (from-to) | 987-996 |
Number of pages | 10 |
Journal | Physical Review B |
Volume | 52 |
Issue number | 2 |
DOIs | |
State | Published - 1995 |
Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics