Ferropericlase
(Mg0.22Fe0.78)O
third-order Birch-Murnaghan · Original · 2017
Why this differs from similar rows?
This study's cubic-indexed fit in neon medium, low-pressure region (1.3-19.2 GPa) with a strong K' prior; other rows use helium medium, the high-P hexagonal indexing, or literature data.
V₀
78.742
ų
Unit cell
K₀
163
GPa
Isothermal
K′
4.020
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 78.742 | 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 | 0.22 |
| FeO | 0.78 |
Formula: (Mg0.22Fe0.78)O
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)single-crystal X-ray diffraction (SXRD), diamond-anvil cell, Ne pressure medium
- Sample
- Mw78 single crystal in neon medium (cubic-indexed, low-pressure region)
Source
- Paper
- Single-crystal equations of state of magnesiowüstite at high pressures
- Authors
- Gregory J. Finkelstein; Jennifer M. Jackson; W. Sturhahn; Dongzhou Zhang; E. Ercan; T. S. Toellner
- DOI
- 10.2138/am-2017-5966
- Year
- 2017
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
V0, K0T, and K'0T values of 78.742(14) Å3, 163.0(1.0) GPa, and 4.02(10) for the cubic-indexed single-crystal Mw78 in neon. Table 3: This Study (cubic), Neon, SXRD, 1.3-19.2 GPa.
Additional notes
P range GPa
1.3-19.2
Kp prior
strong prior of ±0.1 on K'0T (4.0 ± 0.1) used during fit
V0 prior
Prior of V0 = 78.94 ± 0.1 Å3 used during equation of state fit
fitting software
MINUTI (ver.2.0)