Abstract
We have used conventional and high-resolution transmission electron microscopy to investigate the microstructure of epitaxial, ferroelectric PbTiO3 films grown by pulsed laser ablation on (001) MgO single crystals, and on MgO covered with epitaxial Pt or SrTiO3. Pronounced variations are found in the widths and lengths of a-axis-oriented domains in these films, although the volume fraction of a-axis-oriented material varies only weakly for the different types of samples. In addition, the films deposited onto Pt-coated MgO have a larger grain size than those deposited onto bare MgO or SrTiO3/MgO. Possible reasons for the variations in the distribution of a-axis-oriented material in these samples include differences in the elastic properties and electrical conductivities of the different substrate combinations.
| Original language | English |
|---|---|
| Pages (from-to) | 791-794 |
| Number of pages | 4 |
| Journal | Journal of Materials Research |
| Volume | 10 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1995 |
Funding
S. K. Streiffer would like to thank the Alexander von Humboldt-Stiftung for financial assistance. We also thank the Max-Planck Gesellschaft for support. R. Raj and W-Y. Hsu received support from the National Science Foundation, Award No. DMR-9121654, through the Materials Science Center at Cornell University.