Original determinations
Parameters measured or fitted in the source paper (excludes cited values). One row per paper — expand to see every matching EOS record.
18 papers · 49 EOS records
2022 2 EOS records Anharmonic thermodynamic properties and phase boundary across the postperovskite transition in MgSiO3 10.1103/physrevb.106.054103
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
300 K | 40.02 ų/f.u. Formula unit |
227.430 | 4.240 | third-order Birch-Murnaghan | LDA | Original | ||||||
| Post-perovskite |
|
300 K | 42.56 ų/f.u. Formula unit |
194.910 | 4.240 | third-order Birch-Murnaghan | PBE-GGA | Original |
2018 1 EOS record Spreadsheets to calculateP–V–Trelations, thermodynamic and thermoelastic properties of silicates in the MgSiO… 10.1080/08957959.2018.14650…
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
298.2 K | 2.42 Jbar-1 Molar |
253.700 | 4.030 | Birch-Murnaghan (order unspecified) | — | Original |
2016 8 EOS records Experimental and theoretical thermal equations of state of MgSiO3 post-perovskite at multi-megabar pressures 10.1038/srep22652
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
300 K | 158 ų/f.u. Formula unit |
292 | 3.740 | third-order Birch-Murnaghan | T-MgO: Tange et al. MgO scale (3BM) | Original | ||||||
| Post-perovskite |
|
300 K | 156.5 ų/f.u. Formula unit |
324 | 3.300 | Vinet | T-MgO: Tange et al. MgO scale (Vinet) | Original | ||||||
| Post-perovskite |
|
300 K | 155.9 ų/f.u. Formula unit |
336 | 3.130 | AP2 | T-MgO(AP2): Tange et al. MgO scale | Original | ||||||
| Why this differs from similar rows: 'fit3': This study + Guignot et al. data with V0 free; sibling row 'fit4' instead fixes V0 to the g-G-plot value (163.45 A3), changing the fitted K0/K'. | ||||||||||||||
| Post-perovskite |
|
300 K | 163.45 ų/f.u. Formula unit |
228 | 4.180 | AP2 | T-MgO(AP2): Tange et al. MgO scale | Original | ||||||
| Why this differs from similar rows: 'fit4': This study + Guignot et al. data with V0 fixed to 163.45 A3 from the g-G plot; sibling row 'fit3' instead lets V0 float freely. | ||||||||||||||
| Post-perovskite |
|
300 K | 157.16 ų/f.u. Formula unit |
310 | 3.470 | Keane | T-MgO(Keane): Tange et al. MgO scale | Original | ||||||
| Why this differs from similar rows: 'fit5': This study + Guignot et al. data (Keane EOS) with all parameters free; sibling fits fix V0/K-infinity' to these values (fit6/fit7) or use ab initio data instead (fit8). | ||||||||||||||
| Post-perovskite |
|
300 K | 157.16 ų/f.u. Formula unit |
310 | 3.470 | Keane | T-MgO(Keane): Tange et al. MgO scale | Original | ||||||
| Why this differs from similar rows: 'fit6': same dataset as fit5 but with V0 and K-infinity' fixed to the fit5 values (157.16, 2.19) while other parameters are refit; V0/K0/K' match fit5 but theta0/beta differ. | ||||||||||||||
| Post-perovskite |
|
300 K | 164.26 ų/f.u. Formula unit |
203 | 5.350 | Keane | T-MgO(Keane): Tange et al. MgO scale | Original | ||||||
| Why this differs from similar rows: 'fit7' (preferred experimental EOS): V0 fixed to 164.26 A3 from the g-G plot, unlike the free V0 of fit5/fit6; text notes K-infinity' may be slightly misestimated in this fit. | ||||||||||||||
| Post-perovskite |
|
300 K | 164.22 ų/f.u. Formula unit |
205.400 | 5.069 | Keane | — | Original | ||||||
| Why this differs from similar rows: 'fit8': ab initio DFT-LDA theoretical data (not experimental XRD like sibling fits), all parameters free; V0 determined without extrapolation. | ||||||||||||||
2015 1 EOS record The equations of state of forsterite, wadsleyite, ringwoodite, akimotoite, MgSiO3-perovskite, and postperovsk… 10.1016/j.rgg.2015.01.011
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
298.2 K | 24.2 cm³/mol Molar |
253.700 | 4.030 | Birch-Murnaghan (order unspecified) | — | Original |
2014 2 EOS records Prediction of a potential high-pressure structure ofFeSiO3 10.1103/physrevb.90.140102
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 44.9 ų/f.u. Formula unit |
189 | 4.730 | Vinet | — | Original | ||||||
| Why this differs from similar rows: Table III value for the PPv (base post-perovskite) structure; sibling row is for a distinct newly predicted phase, PPv-II (Cmmm), at the same nominal composition. | ||||||||||||||
| Post-perovskite |
|
— | 45.45 ų/f.u. Formula unit |
195 | 4.670 | Vinet | — | Original | ||||||
| Why this differs from similar rows: Table III value for PPv-II, a newly predicted Cmmm structure distinct from the base post-perovskite (PPv) phase in the sibling row. | ||||||||||||||
2010 1 EOS record THERMODYNAMIC PROPERTIES OF MgSiO3 POST-PEROVSKITE 10.1142/s0217984910022391
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 163.3 ų Unit cell |
219.300 | 4.400 | third-order Birch-Murnaghan | — | Original |
2009 1 EOS record The MgSiO3system at high pressure: Thermodynamic properties of perovskite, postperovskite, and melt from glob… 10.1029/2008jb005900
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 162.2 ų Unit cell |
225 | 4.210 | third-order Birch-Murnaghan | adiabatic | Original |
2009 3 EOS records FIRST-PRINCIPLES STUDY OF THE STRUCTURAL, ELECTRONIC AND OPTICAL PROPERTIES OF MgSiO3 AT HIGH PRESSURE 10.1142/s0129183109014242
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 168.29 Unit cell |
223.730 | 4.152 | third-order Birch-Murnaghan | — | Original | ||||||
| Post-perovskite |
|
— | 168.05 Unit cell |
224.200 | 4.406 | Vinet | — | Original | ||||||
| Post-perovskite |
|
— | 167.75 Unit cell |
226.700 | 4.684 | other named EOS | — | Original |
2007 1 EOS record Compression, thermal expansion, structure, and instability of CaIrO3, the structure model of MgSiO3 post-pero… 10.2138/am.2007.2473
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin |
|---|---|---|---|---|---|---|---|---|
| Post-perovskite | CaIrO3 | 300 K | 226.632 ų Unit cell |
180.200 | — | second-order Birch-Murnaghan | — | Original |
2007 1 EOS record Equations of state of CaIrO3 perovskite and post-perovskite phases 10.2138/am.2007.2715
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin |
|---|---|---|---|---|---|---|---|---|
| Post-perovskite | CaIrO3 | — | 226.38 ų Unit cell |
181 | 2.300 | third-order Birch-Murnaghan | — | Original |
2006 3 EOS records Stability and equation of state of the post‐perovskite phase in MgGeO3 to 2 Mbar 10.1029/2006gl025686
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 179.2 ų Unit cell |
207 | 4.400 | third-order Birch-Murnaghan | Pt (Holmes et al. 1989), 111 reflection o… | Original | ||||||
| Post-perovskite |
|
— | 175.9 ų Unit cell |
245 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Post-perovskite |
|
— | 178.02 ų Unit cell |
201.900 | 4.340 | Birch-Murnaghan (order unspecified) | — | Original |
2006 2 EOS records Equation of state of the postperovskite phase synthesized from a natural (Mg,Fe)SiO 3 orthopyroxene 10.1073/pnas.0506811103
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
300 K | 164.9 ų Unit cell |
219 | 4 | second-order Birch-Murnaghan | — | Original | ||||||||||||
| Why this differs from similar rows: Birch-Murnaghan fit with K'0 fixed at 4 (main reported fit); sibling row instead fixes K'0 = 4.4 to illustrate parameter tradeoffs. | ||||||||||||||||||||
| Post-perovskite |
|
300 K | 166.2 ų Unit cell |
198 | 4.400 | second-order Birch-Murnaghan | — | Original | ||||||||||||
| Why this differs from similar rows: Text explicitly says this row fixes K'0 = 4.4 'to illustrate the tradeoffs' between correlated V0/K0/K'; sibling row instead fixes K'0 = 4. | ||||||||||||||||||||
2006 4 EOS records Equation of state of CaIrO3-type MgSiO3 up to 144 GPa 10.2138/am.2006.2118
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
300 K | 162.86 ų Unit cell |
237 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Fit uses Anderson's gold pressure standard; sibling rows use Jamieson's or Dewaele's gold scale on the same P-V data, giving different K0. | ||||||||||||||
| Post-perovskite |
|
300 K | 162.86 ų Unit cell |
226 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Fit uses Jamieson's gold pressure standard; sibling rows use Anderson's or Dewaele's gold scale on the same P-V data, giving different K0. | ||||||||||||||
| Post-perovskite |
|
300 K | 162.86 ų Unit cell |
248 | 4 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Fit uses Dewaele's gold pressure standard; sibling rows use Anderson's or Jamieson's gold scale on the same P-V data, giving different K0. | ||||||||||||||
| Post-perovskite |
|
300 K | 124.5 ų Unit cell |
577 | 4 | Birch-Murnaghan (order unspecified) | — | Original | ||||||
2005 9 EOS records Effect of chemistry on the stability and elasticity of the perovskite and post‐perovskite phases in the MgSiO… 10.1029/2005gl023164
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 40.8 ų/f.u. Formula unit |
203 | 4.190 | third-order Birch-Murnaghan | LDA | Original | ||||||||
| Post-perovskite |
|
— | 38.39 ų/f.u. Formula unit |
243 | 4.050 | third-order Birch-Murnaghan | GGA | Original | ||||||||
| Post-perovskite |
|
— | 42.74 ų/f.u. Formula unit |
206 | 4.230 | third-order Birch-Murnaghan | LDA | Original | ||||||||
| Post-perovskite |
|
— | 44.38 ų/f.u. Formula unit |
212 | 4.280 | third-order Birch-Murnaghan | LDA | Original | ||||||||
| Why this differs from similar rows: LDA-functional value for ferromagnetic (FM) FeSiO3 post-perovskite; the GGA value for the same structure (V0=41.17, K0=244, K'=4.25) is given in the sibling row. | ||||||||||||||||
| Post-perovskite |
|
— | 41.17 ų/f.u. Formula unit |
244 | 4.250 | third-order Birch-Murnaghan | GGA | Original | ||||||||
| Why this differs from similar rows: GGA value (Perdew et al. 1996) for ferromagnetic (FM) FeSiO3 post-perovskite; the LDA value for the same structure (V0=44.38, K0=212, K'=4.28) is given in the sibling row. | ||||||||||||||||
| Post-perovskite |
|
— | 44.36 ų/f.u. Formula unit |
212 | 4.270 | third-order Birch-Murnaghan | LDA | Original | ||||||||
| Why this differs from similar rows: LDA-functional value for antiferromagnetic (AFM) FeSiO3 post-perovskite; the GGA value for the same structure is given in the sibling row. | ||||||||||||||||
| Post-perovskite |
|
— | 41.16 ų/f.u. Formula unit |
241 | 4.330 | third-order Birch-Murnaghan | GGA | Original | ||||||||
| Why this differs from similar rows: GGA-functional value (Perdew et al. 1996) for antiferromagnetic (AFM) FeSiO3 post-perovskite; the LDA value for the same structure is given in the sibling row. | ||||||||||||||||
| Post-perovskite |
|
— | 42 ų/f.u. Formula unit |
206 | 4.130 | third-order Birch-Murnaghan | LDA | Original | ||||||||
| Post-perovskite |
|
— | 38.78 ų/f.u. Formula unit |
231 | 4.380 | third-order Birch-Murnaghan | GGA | Original | ||||||||
2005 5 EOS records Effect of Al on the sharpness of the MgSiO3 perovskite to post‐perovskite phase transition 10.1029/2005gl023192
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 41.83 ų Unit cell |
204 | 4.180 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: Al-free (0 mol% Al2O3) end-member post-perovskite composition; sibling rows are Al-bearing post-perovskite with different substitution mechanisms (CCM, OVM, AlHM). | ||||||||||||||
| Post-perovskite |
|
— | 41.79 ų Unit cell |
207 | 4.130 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: 6.25 mol% Al2O3 via the charge-coupled mechanism (CCM: MgSi->AlAl); sibling rows use different Al content/substitution mechanisms. | ||||||||||||||
| Post-perovskite |
|
— | 41.78 ų Unit cell |
201 | 4.290 | third-order Birch-Murnaghan | — | Original | ||||||
| Post-perovskite |
|
— | 42.33 ų Unit cell |
194 | 4.150 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: 6.25 mol% Al2O3 via the oxygen-vacancy-forming mechanism (OVM: SiSiO->AlAl+vacancy); sibling rows use different Al content/substitution mechanisms. | ||||||||||||||
| Post-perovskite |
|
— | 41.64 ų Unit cell |
228 | 3.860 | third-order Birch-Murnaghan | — | Original | ||||||
| Why this differs from similar rows: 3.125 mol% Al2O3 via the hydrous Al substitution mechanism (AlHM: Si->AlH); sibling rows use different Al content/substitution mechanisms. | ||||||||||||||
2005 2 EOS records Shock-induced superheating-melting and geophysical Implications 10.1107/s0108767305096972
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | 179.7 ų Unit cell |
203 | 4.400 | Birch-Murnaghan (order unspecified) | — | Original | ||||||||
| Post-perovskite |
|
— | 164.9 ų Unit cell |
219 | 4.400 | Birch-Murnaghan (order unspecified) | — | Original |
2005 2 EOS records Stability and equation of state of MgGeO 3 post-perovskite phase 10.2138/am.2005.1702
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
300 K | 182.2 ų Unit cell |
210 | 3.500 | Birch-Murnaghan (order unspecified) | — | Original | ||||||
| Why this differs from similar rows: Fits K'0 freely (3.5) to the decompression P-V data; sibling row instead fixes K'0 to 4, giving a different K0/V0. | ||||||||||||||
| Post-perovskite |
|
300 K | 183.1 ų Unit cell |
192 | 4 | Birch-Murnaghan (order unspecified) | — | Original | ||||||
| Why this differs from similar rows: K'0 fixed to 4 in the fit; sibling row fits K'0 freely (3.5) to the same decompression data, giving a different K0/V0. | ||||||||||||||
2004 1 EOS record Elasticity of post‐perovskite MgSiO3 10.1029/2004gl020278
| Phase | Composition | Tref | V₀ | K₀ (GPa) | K′ | EOS model | Method note | Origin | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-perovskite |
|
— | — | 231 | 4.300 | unknown | — | Original |