Post-perovskite
MgSiO3
third-order Birch-Murnaghan · Original · 2016
V₀
158
ų/cell
Formula unit
K₀
292
GPa
Isothermal
K′
3.740
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 158 | 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
- fit1 (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: 3BM | 158.0± 1.5 | 292± 22 | 3.74± 0.13 | γ0=1.31± 0.10 | γ∞=0.93 fix | β=3.5± 0.5 | θ0=971± 287 | fit1 | Exp., LHDAC | T-MgO(3BM) | This study +Guignot et al.10
Additional notes
fit number
fit1
gamma0
1.31± 0.10
gamma inf
0.93 fix
beta
3.5± 0.5
theta0 K
971± 287
pressure scale
T-MgO: Tange et al. MgO scale (3BM)