Ferropericlase

(Mg0.73Fe0.27)O

third-order Birch-Murnaghan · Original · 2017

Why this differs from similar rows?

Refit of Jacobsen et al. (2002) single-crystal data in 4:1 methanol-ethanol medium, 0-9.3 GPa; sibling row refits a different original study (Jacobsen et al. 2005, helium medium).

V₀

76.336

Å³

Unit cell

K₀

158.400

GPa

Isothermal

K′

5.480

dimensionless

Volume (V₀)

Value	Unit	Basis	Z
76.336	Å³	Unit cell	—

Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ Å³/f.u. conversion is not applied automatically.

Composition

Oxide	Molar
MgO	0.73
FeO	0.27

Formula: (Mg0.73Fe0.27)O

Conditions & method

T_ref: 300 K
P_ref: —
Structure: B1 rocksalt (Fm-3m)
Method: experiment (XRD / DAC / multianvil compression)
single-crystal X-ray diffraction (SXRD), 4:1 methanol-ethanol medium
Sample: single crystal in 4:1 methanol-ethanol (data from Jacobsen 2002, re-fit in this study)

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

Table 3: Jacobsen et al. (2002), (Mg0.73Fe0.27)O, 4:1 Meth-Eth, SXRD, 0-9.3 GPa, V0 = 76.336(3) Å3, K0T = 158.4(5) GPa, K'0T = 5.48(11).

Additional notes

P range GPa

0-9.3

data source

Jacobsen (2002)