Abstract
Nonlinear ir absorption has been measured in an LO phonon in thin KReO4 films at room temperature. The excited-state lifetime is at least two orders of magnitude longer than that observed for the corresponding single-ion vibrational mode in matrix-isolated ReO4-. We attribute the long lifetime to the restrictions imposed by phonon momentum conservation within the film.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4863-4866 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 28 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1983 |
ASJC Scopus subject areas
- Condensed Matter Physics