Post-perovskite
MgSiO3
AP2 · Cited · 2025
Why this differs from similar rows?
AP2 thermal-EOS fit (Sakai et al., 2016) with V0 fixed to 0.16345 nm3 (noted as fixed); sibling row fits V0 freely (0.1559 nm3) instead.
V₀
0.16345
nm³
Unit cell
K₀
228
GPa
Isothermal
K′
4.180
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 0.16345 | nm³ | Unit cell | — |
| 163.4500 | 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=0.16345(固定) nm3, K0=228±1 GPa, K0T'=4.18±0.04, γ0=1.50(10), γ∞=2/3, θD0=849(260), β=1.80(8), AP2, Sakai et al., 2016
Additional notes
V0 fixed in fit
True
gamma0
1.50(10)
gamma inf
2/3
thetaD0
849(260)
beta
1.80(8)
reference
Sakai et al., 2016