Post-perovskite
MgSiO3
Keane · Cited · 2025
Why this differs from similar rows?
Keane-formulation thermal EOS (Sakai et al., 2016) with V0 fixed to 0.16426 nm3 (noted as fixed); sibling row fits V0 freely (0.15716 nm3) instead.
V₀
0.16426
nm³
Unit cell
K₀
203
GPa
Isothermal
K′
5.350
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 0.16426 | nm³ | Unit cell | — |
| 164.2600 | ų | canonical (converted) | — |
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
- —
- Pref
- —
- Structure
- post-perovskite (CaIrO3-type, Cmcm)
- Method
- experiment (other / unspecified)experimental and theoretical thermal EOS at multi-megabar pressures
- Sample
- —
Source
- Paper
- Research progresses on the structure, phase transition and physical properties …
- Authors
- Zixing Wang; Zheng-yong REN; Lei Liu
- DOI
- 10.3724/j.issn.1007-2802.20240151
- Year
- 2025
- Journal
- Bulletin of Mineralogy Petrology and Geochemistry
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
表3 后钙钛矿: V0=0.16426(固定) nm3, K0=203±2 GPa, K0T'=5.35±0.09, γ0=1.47(10), γ∞=0.93, θD0=848(238), β=2.7(3), Keane, Sakai et al.,2016
Additional notes
V0 fixed in fit
True
gamma0
1.47(10)
gamma inf
0.93
thetaD0
848(238)
beta
2.7(3)
reference
Sakai et al., 2016