Ferropericlase
(Mg0.490(3)Fe0.483(2)Ti0.027(5))O (Fp48, 48 mol% FeO)
spin-crossover EOS · Original · 2016
Why this differs from similar rows?
Low-spin (LS) state fit with K' fixed to 4 (not constrained by data); sibling row is the high-spin (HS) state of the same sample, fitted with K' free.
V₀
73.64
ų
Unit cell
K₀
173
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 73.64 | 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 | 0.49 |
| FeO | 0.483 |
| TiO2 | 0.027 |
Formula: (Mg0.490Fe0.483Ti0.027)O
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)X-ray diffraction (DAC, Ne pressure medium, ruby scale)
- Sample
- Fp48, polycrystalline, 95% 57Fe-enriched, this study; low-spin (LS) state
Source
- Paper
- Equation of state and spin crossover of (Mg,Fe)O at high pressure, with implica…
- Authors
- Natalia Solomatova; Jennifer M. Jackson; W. Sturhahn; J. K. Wicks; Jiyong Zhao; T. S. Toellner; Bora Kalkan; William Steinhardt
- DOI
- 10.2138/am-2016-5510
- Year
- 2016
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
For the LS state, the K0T,LS is 173(13) GPa with a K'0T,LS fixed to 4 and a V0,LS of 73.64(94) Å3. Fit parameter K'0T,LS was fixed at 4, as it was not constrained by the data.
Additional notes
P tr GPa
68.8(2.7)
prior K0T LS
170 (±20) GPa