Wüstite
Fe0.93O
third-order Birch-Murnaghan · Original · 2005
Why this differs from similar rows?
This study's fit for the cubic Fe0.93O phase over the full P range 0-51 GPa, with K' fixed to 4.0.
V₀
79.41
ų
Unit cell
K₀
146
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 79.41 | 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 |
|---|---|
| FeO | 0.93 |
Formula: Fe0.93O
Conditions & method
- Tref
- 300 K
- Pref
- 0.000 GPa
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)single-crystal synchrotron X-ray diffraction, diamond-anvil cell, helium pressure medium, ruby fluorescence pressure scale
- Sample
- single crystal synthesized by oxidizing metallic iron, a0 = 4.2980 (6) Å
Source
- Paper
- Single-crystal synchrotron X-ray diffraction study of wüstite and magnesiowüsti…
- Authors
- Steven D. Jacobsen; Jung‐Fu Lin; R. J. Angel; Guoyin Shen; Vitali B. Prakapenka; Przemysław Dera; Ho-kwang Mao; Russell J. Hemley
- DOI
- 10.1107/s0909049505022326
- Year
- 2005
- Journal
- Journal of Synchrotron Radiation
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
We fitted the P–V data of cubic Fe0.93O to a third-order Birch-Murnaghan equation of state... we fixed K' = 4.0 and varied V0 and K0, resulting in V0 = 79.41 (±0.04) Å and K0 = 146 (±2) GPa. Table 2: Cubic Fe0.93O, P range 0–51 GPa, V0 79.41 (±0.04), K0 146 (±2), K' 4.0 (fixed), This study.
Additional notes
P range GPa
0-51
rho0 g cm3
5.683 (±0.003)
MV0 cm3
11.95 (±0.001)
F f plot V0
cubic Fe0.93O V0 = 79.40 ± 0.04 Å3 (determined experimentally per Fig. 7 caption)
fitting software
EOS-FIT (V5.2) (Angel, 2001)