PRESSURE-RELATED PHASE STABILITY OF MgSiO3and(Mg0.75, Fe0.25)SiO3 AT LOWER MANTLE CONDITION
10.1142/s0217979209053047 · 2009 · International Journal of Modern Physics B
Liwei Deng; Jijun Zhao; Hong Liu; Di Wu; Zizheng Gong
11 EOS records from this paper
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bridgmanite |
|
— | 162.38 ų Unit cell |
262.370 | 3.870 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the Pbnm (orthorhombic) MgSiO3 polymorph from Table 1; other rows are different computed space-group polymorphs (P4mbm, Pm-3m), not repeat fits of one phase. | ||||||||||||||||
| Bridgmanite |
|
— | 164.99 ų Unit cell |
258.390 | 4.040 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the P4mbm (tetragonal) MgSiO3 polymorph from Table 1, a different computed space-group structure than the Pbnm and Pm-3m rows in the same table. | ||||||||||||||||
| Bridgmanite |
|
— | 168.33 ų Unit cell |
258.340 | 4.070 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the Pm-3m hypothetical cubic MgSiO3 polymorph from Table 1, a different computed space-group structure than the Pbnm and P4mbm rows. | ||||||||||||||||
| Bridgmanite |
|
— | 165.49 ų Unit cell |
241.630 | 4.160 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the Pm space-group Fe-bearing bridgmanite structure from Table 1; other rows are different computed polymorphs (Pmmm, P4mmm) of the same composition. | ||||||||||||||||
| Bridgmanite |
|
— | 167.57 ų Unit cell |
235.720 | 4.310 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the Pmmm space-group polymorph from Table 1, distinct from the Pm and P4mmm rows for the same composition. | ||||||||||||||||
| Bridgmanite |
|
— | 172.13 ų Unit cell |
227.670 | 4.350 | fourth-order Birch-Murnaghan | — | Original | ||||||||
| Why this differs from similar rows: Reports the P4mmm space-group polymorph from Table 1, distinct from the Pm and Pmmm rows for the same composition. | ||||||||||||||||
| Bridgmanite |
|
— | 162.3 ų Unit cell |
— | — | unknown | — | Cited | ||||||||
| Why this differs from similar rows: Cited experimental literature value (ref. 21, V0=162.300 A3) quoted for comparison with the DFT result; sibling row cites a different reference (22) with a different V0. | ||||||||||||||||
| Bridgmanite |
|
— | 162.486 ų Unit cell |
— | — | unknown | — | Cited | ||||||||
| Why this differs from similar rows: Cited experimental literature value (ref. 22, V0=162.486 A3) quoted for comparison; sibling row cites a different reference (21) with a different V0. | ||||||||||||||||
| Bridgmanite |
|
— | — | 259.800 | 4.060 | unknown | — | Cited | ||||||||
| Bridgmanite |
|
— | 164.03 ų Unit cell |
— | — | unknown | — | Cited | ||||||||
| Why this differs from similar rows: V0 taken from the linear V0-x relation of Hemley and Cohen; sibling row instead cites the Katsura and Ito relation (different original source and units, cm3/mol). | ||||||||||||||||
| Bridgmanite |
|
— | 24.718 cm³/mol Molar |
— | — | unknown | — | Cited | ||||||||
| Why this differs from similar rows: V0 (24.718 cm3/mol) taken from the linear V0-x relation of Katsura and Ito; sibling row instead cites the Hemley and Cohen relation (in A3). | ||||||||||||||||