Bridgmanite
MgSiO3
unknown · Cited · 2004
V₀
—
Unknown basis
K₀
257
GPa
Unknown
K′
—
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| — | — | Unknown basis | — |
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
- orthorhombic perovskite (Pbnm/Pnma)
- Method
- first-principles DFT / ab initiofirst-principles density functional theory, static calculation (from Wentzcovitch et al., 2004)
- Sample
- first-principles calculated (comparison phase)
Source
- Paper
- Elasticity of post‐perovskite MgSiO3
- Authors
- Taku Tsuchiya; Jun Tsuchiya; Koichiro Umemoto; Renata M. Wentzcovitch
- DOI
- 10.1029/2004gl020278
- Year
- 2004
- Journal
- Geophysical Research Letters
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Although post-perovskite's aggregate B, 231 GPa, is smaller than perovskite's, 257 GPa, at P = 0 GPa ... those of the perovskite structure [Wentzcovitch et al., 2004].
Additional notes
note
Perovskite value quoted for comparison from Wentzcovitch et al. [2004]; no V0 or K' reported for perovskite in this paper.