Post-perovskite
MgSiO3
Vinet · Original · 2016
V₀
156.5
ų/cell
Formula unit
K₀
324
GPa
Isothermal
K′
3.300
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 156.5 | ų/cell | Formula unit | — |
Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ ų/f.u. conversion is not applied automatically.
Composition
| Oxide | Molar |
|---|---|
| MgO | 1 |
| SiO2 | 1 |
Formula: MgSiO3
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- post-perovskite (CaIrO3-type, Cmcm)
- Method
- experiment (XRD / DAC / multianvil compression)LHDAC powder X-ray diffraction
- Sample
- fit2 (This study + Guignot et al. data)
Source
- Paper
- Experimental and theoretical thermal equations of state of MgSiO3 post-perovski…
- Authors
- Takeshi Sakai; Haruhiko Dekura; Naohisa Hirao
- DOI
- 10.1038/srep22652
- Year
- 2016
- Journal
- Scientific Reports
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 1: Vinet | 156.5± 1.6 | 324± 27 | 3.30± 0.23 | γ0=1.48± 0.09 | γ∞=0.93 fix | β=2.7± 0.2 | θ0=931± 232 | fit2 | Exp., LHDAC | T-MgO(Vinet) | This study +Guignot et al.10
Additional notes
fit number
fit2
gamma0
1.48± 0.09
gamma inf
0.93 fix
beta
2.7± 0.2
theta0 K
931± 232
pressure scale
T-MgO: Tange et al. MgO scale (Vinet)