Abstract
The polarized Raman spectra of the upper part of a thin ice Ih film were obtained in the range of 150 cm-1 to 3800 cm-1. The spectra showed clear polarization dependence; several new peaks were also observed. The longitudinaloptic-tranverseoptic (LO-TO) splitting of the mode near 220 cm-1 in the translational vibration region was experimentally confirmed at 133 K. The Fermi resonance between the bending overtone (around 3270 cm-1) and symmetry stretching fundamental (around 3350 cm-1) in the stretching vibration region appeared at nearly the same temperature. Results showed that ice XI (i.e. proton-ordered phase of ice Ih) slowly formed in the upper part of a thin ice Ih film without KOH as the temperature gradually decreased below 133 K.
| Original language | English |
|---|---|
| Pages (from-to) | 388-391 |
| Number of pages | 4 |
| Journal | Journal of Raman Spectroscopy |
| Volume | 46 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 1 2015 |
Scopus Subject Areas
- General Materials Science
- Spectroscopy
Keywords
- Fermi resonance
- ice Ih
- ice XI
- LO-TO splitting