Ferropericlase
(Mg1-xFex)O, x = 0.17-0.2
Birch-Murnaghan (order unspecified) · Original · 2007
V₀
76.1
ų
Unit cell
K₀
157.500
GPa
Isothermal
K′
3.920
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 76.1 | ų | Unit cell | — |
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 | 0.83 |
| FeO | 0.17 |
Formula: (Mg1-xFex)O
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)synchrotron X-ray diffraction, diamond-anvil cell, room temperature
- Sample
- combined data set: this study (Mg0.80Fe0.20)O + Lin et al. [2005] (Mg0.83Fe0.17)O, high-spin phase, data up to 40 GPa
Source
- Paper
- Effects of Fe spin transition on the elasticity of (Mg, Fe)O magnesiowüstites a…
- Authors
- S. Speziale; V. E. Lee; S. M. Clark; Jung‐Fu Lin; M. Pasternak; Raymond Jeanloz
- DOI
- 10.1029/2006jb004730
- Year
- 2007
- Journal
- Journal of Geophysical Research Atmospheres
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
we combined the two data sets (Table 1) and fixed the starting volume to the value of 76.10 (±0.07) Å3 reported by Lin et al. [2005] ... The Birch-Murnaghan EoS fit to the combined data set up to 40 GPa (high-spin phase) yields KT0 = 157.5 (±0.5) GPa and K'T0 = 3.92 (±0.1).
Additional notes
V0 note
measured ambient volume from Lin et al. [2005], fixed in the fit
spin state
high-spin