Far-infrared reflection spectra of Pdo, PdS, PdSe and PtS
Abstract
The far-infrared reflection spectra of PdO, PdS, PdSe and PtS have been recorded in the frequency range from 700 to 30cm -1. From Kramers-Kronig analysis the TO-and LO-phonon frequencies (| q| = 0) were determined for PdO, PdS and PtS. Strongly temperature-dependent free-carrier contributions to the reflection spectrum of PdSe were observed. A nearly zero band gap of PdSe is discussed with regard to being responsible for this behaviour.
- Publication:
-
Infrared Physics
- Pub Date:
- February 1985
- DOI:
- 10.1016/0020-0891(85)90111-3
- Bibcode:
- 1985InfPh..25..381K