- Type
- Raman scattering
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| νLT (Eg) | Eg | unknown |
(CO3)2- K⁺ |
mode degeneracy | double | full |
| Peak position (cm-1) |
Center position (cm-1) |
Width (cm-1) |
Shape | Asymmetry factor | Peak intensity (cm-1) |
Peak intensity relative | Peak strength | Integrated intensity (cm-2) |
Integrated intensity relative | Integrated strength | Temperature (K) |
Pressure (bar) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 107 ± 1 | - | - | undefined | 0.005 | vvw | 295.0 | 1 |
- Label
- νLT (Eg)
- Symmetry
- Eg
- Category
- unknown
Evaluation
- Level
- uncertain assignment
- Evaluation
- undefined
- Comments
- assignment from WURM database
- Contribution level
- full
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | mode degeneracy | double |
- Label (type)
- νL (libration)
- Comments
- slight out-of-plane rotation of CO32-
- Label (type)
- νT (translation)
- Comments
- out-of-phase and in-plane translation of CO32- and out-of-phase translation of K⁺
Rotation modes
Phonon modes
- Composition
- pure alpha-K2Ca(CO3)2, formed at 3GPa/975°C
- Texture
- crystal
- Temperature
- 295.0 ± 5.0 K
Temperature
- Pressure
- 1 bar
Pressure
- Laser wavelength
- 532.0 nm
- Sample orientation mode
- unoriented
- Method #1
- spectrum measurement
- Overlap
- moderately blended
- Peak
- 107 ± 1 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- Shape
- undefined
- Evaluation
- validated
- Quality
- undefined
- Method
- peak intensity
- Relative intensity
- 0.005 ± 0.001
- Strength
- very very weak (vvw)
- Evaluation
- undefined
- Quality
- D