cubic perovskite (SrSiO3)
SrSiO3
Birch-Murnaghan (order unspecified) · Original · 2013
V₀
49.18
ų
Unit cell
K₀
211
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 49.18 | 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 |
|---|---|
| SrO | 1 |
| SiO2 | 1 |
Formula: SrSiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- cubic perovskite (Pm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)in situ high-pressure angle-dispersive synchrotron X-ray diffraction in diamond-anvil cell (Pt pressure standard, Ar medium)
- Sample
- laser-heated DAC synthesized at ~38 GPa and 1500-2000 K; 16 P-V data on decompression
Source
- Paper
- Cubic perovskite polymorph of strontium metasilicate at high pressures
- Authors
- Wen Xiao; Daniel Q. Tan; Wenge Zhou; Jing Liu; Jiandong Xu
- DOI
- 10.2138/am.2013.4470
- Year
- 2013
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
With K′0 fixed at 4, the fitting results yield K0 = 211(3) GPa and V0 = 49.18(5) Å3, respectively. ... where V0, K0, and K′0 are the volume, the isothermal bulk modulus, and its pressure derivative at room pressure, respectively.
Additional notes
fitted zero pressure lattice constant a
3.6638 Å
note
Volume at 6.2 GPa excluded from fit due to onset of amorphization; Z = 1 per unit cell