Bridgmanite
MgSiO3 (x = 0)
unknown · Cited · 2002
Why this differs from similar rows?
Cites Oganov et al. [2001b] GGA calculation; text explicitly attributes its substantially lower value to the GGA functional, vs LDA used by sibling rows.
V₀
—
Unknown basis
K₀
231
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 GGA calculation (cited)
- Sample
- Table 1, Oganov et al. [2001b]
Source
- Paper
- Elasticity of (Mg,Fe)SiO3‐perovskite at high pressures
- Authors
- Boris Kiefer; Lars Stixrude; Renata M. Wentzcovitch
- DOI
- 10.1029/2002gl014683
- Year
- 2002
- Journal
- Geophysical Research Letters
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 1: M0^e (Oganov et al. [2001b]): K = 231, G = 162; described in text as 'substantially lower as expected of GGA calculations'.
Additional notes
G0 GPa
162