| Autor: |
Willes H. Weber, A. E. Chen, K. C. Hass, G. W. Graham, B. L. Chamberland |
| Rok vydání: |
1998 |
| Předmět: |
|
| Zdroj: |
Solid State Communications. 106:95-100 |
| ISSN: |
0038-1098 |
| DOI: |
10.1016/s0038-1098(97)10247-2 |
| Popis: |
Raman spectra are obtained from two types of Na x Pt 3 O 4 crystals ( x ≈ 1 and x ≈ 0.4) grown by reacting Pt with O under high temperature and high O 2 pressure conditions. The crystals show a growth habit having rectangular facets aligned with the cubic unit cell. Polarized spectra from such facets obtained with a Raman microscope yield assignments for all four Raman-allowed modes: two O modes of species F 2 g and E g near 700 cm −1 and two Pt modes of the same species near 200 cm −1 . The O modes shift substantially with changes in the Na concentration, whereas the Pt modes do not. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect