Table IV.
Temperature-dependent average structure of PbTiO3 from AIMD
| T=300 K: | z | ||
|---|---|---|---|
| Ion | x | y | z |
| Pb | 0.0000 | 0.0000 | 0.1056 |
| Ti | 0.5000 | 0.5000 | 0.5709 |
| O | 0.0000 | 0.5000 | 0.4982 |
| O | 0.5000 | 0.0000 | 0.4982 |
| O | 0.5000 | 0.5000 | 0.0000 |
| T=600 K: | |||
| Ion | x | y | z |
| Pb | 0.0000 | 0.0000 | 0.0739 |
| Ti | 0.5000 | 0.5000 | 0.5550 |
| O | 0.0000 | 0.5000 | 0.4993 |
| O | 0.5000 | 0.0000 | 0.4993 |
| O | 0.5000 | 0.5000 | 0.0000 |
| T=900 K: | |||
| Ion | x | y | z |
| Pb | 0.0000 | 0.0000 | 0.0000 |
| Ti | 0.5000 | 0.5000 | 0.5000 |
| O | 0.0000 | 0.5000 | 0.5000 |
| O | 0.5000 | 0.0000 | 0.5000 |
| O | 0.5000 | 0.5000 | 0.0000 |