Table 3.
Comparison with elastic constants of SrTiO3 at 25°C determined by other workers
| Constants | Poindexter and Giardinia | Bell and Rupprechtb | Present workb | Percent difference, last two columns |
|---|---|---|---|---|
| c11 | 3.48 | 3.181 | 3.156±0.027 | 0.79 |
| c12 | 1.01 | 1.025 | 1.027±.027 | 0.19 |
| c44 | 1.19 | 1.236 | 1.215±.006 | 1.73 |
| s11 | 3.3 | 3.729 | 3.772±.023 | 1.14 |
| s12 | −0.74 | −0.909 | −0.926±.010 | 1.84 |
| s44 | 8.4 | 8.091 | 8.233±.040 | 1.73 |
All cij in units of 1012 dyne/cm2; sij in units of 10—13 cm2/dyne.
a
sij determined by resonance method and cij by matrix inversion.
b
cij determined by pulse velocity method and sij by matrix inversion.