Why this differs from similar rows:
Table 2 cites Ref. 8 (Jackson & Niesler), ultrasonic measurements to only 3 GPa; sibling row cites a different study (Ref. 14) measured to 37 GPa.
Why this differs from similar rows:
Table 2 cites Ref. 14 (Chopelas), fluorescence side-band spectroscopy to 37 GPa; sibling row cites a different study (Ref. 8) measured only to 3 GPa.
Why this differs from similar rows:
Table 2 cites Ref. 37 (Karki et al.), a first-principles theoretical calculation; sibling row cites Ref. 25, an experimental Brillouin scattering study.