Single-crystal synchrotron X-ray diffraction study of wüstite and magnesiowüstite at lower-mantle pressures
10.1107/s0909049505022326 · 2005 · Journal of Synchrotron Radiation
Steven D. Jacobsen; Jung‐Fu Lin; R. J. Angel; Guoyin Shen; Vitali B. Prakapenka; Przemysław Dera; Ho-kwang Mao; Russell J. Hemley
11 EOS records from this paper
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wüstite |
|
300 K | 79.41 ų Unit cell |
146 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| 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. | ||||||||||||||
| Wüstite |
|
300 K | 51.28 ų Unit cell |
238 | 3.500 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: This study's fit for the rhombohedral high-pressure phase, using only the 28-51 GPa range (a different phase and pressure range than the cubic-phase sibling row). | ||||||||||||||
| Wüstite |
|
300 K | 59.85 ų Unit cell |
132 | 4.200 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Rhombohedral-phase parameters back-calculated to zero pressure from a fit referenced to 28 GPa, a different approach than the direct ambient-pressure fits in sibling rows. | ||||||||||||||
| Wüstite |
|
300 K | 59.72 ų Unit cell |
134 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Rhombohedral-phase fit made directly at a 1 atm reference pressure over 23-51 GPa with K' fixed to 4.0; authors state this is their 'best estimate' for this phase. | ||||||||||||||
| Ferropericlase |
|
300 K | 77.3 ų Unit cell |
154 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Wüstite |
|
300 K | 79.88 ų Unit cell |
149 | 4 | unknown | — | Cited | ||||||
| Periclase |
|
300 K | 74.68 ų Unit cell |
160.200 | 4.030 | unknown | — | Cited | ||||||
| Wüstite |
|
— | — | 147 | — | unknown | — | Cited | ||||||
| Ferropericlase |
|
— | — | 158.400 | 5.500 | unknown | — | Cited | ||||||
| Ferropericlase |
|
— | — | 157 | 4 | unknown | — | Cited | ||||||
| Ferropericlase |
|
— | — | 154 | 4 | unknown | — | Cited | ||||||