. 2000 Nov 28;97(25):13494–13499. doi: 10.1073/pnas.240466697

Table 1.

Single-crystal elastic tensor of MgO as a function of pressure

Ref.	C₁₁, GPa	C₄₄, GPa	C₁₂, GPa
This study (0–55 GPa)	297.0(1) + 9.7(2)P − 0.063(6)P²	155.7(5) + 1.09(7)P − 0.0047(16)P²	95.2(7) + 0.82(14)P + 0.030(3)P²
Ref. 25 (0–18.6 GPa)	297.9(2) + 9.1(2)P − 0.045(15)P²	154.4(20) + 0.84(20)P + 0.003(10)P²	95.8(10) + 1.34(15)P − 0.001(10)P²
Ref. 8 (0–3 GPa)	296.8(2) + 9.2(1)P − 0.059(30)P²	155.8(2) + 1.11(1)P − 0.016(3)P²	95.3(2) + 1.61(12)P − 0.014(34)P²

The numbers in parentheses give the uncertainties in the last significant figures.