Abstract
Lead germanate, Pb5Ge3O11 (PGO), is known to be ferroelectric with a large pyroelectric property and relatively small dielectric constant. In this paper, we investigated the optimal conditions for the c-axis oriented PGO thin films. The effectiveness of oxygen (O2) as an oxidizing agent during in-situ growth of PGO thin films on YBCO/LaAlO3(100) substrates is studied as a function of substrate temperature. Films with c-axis preferred orient can be obtained at a substrate temperature of 650°C for 20min with oxygen pressure 26.6 Pa followed by subsequent annealing temperature at 400°C for 30min to keep good YBCO layers.
Original language | English |
---|---|
Pages (from-to) | 245-252 |
Number of pages | 8 |
Journal | Ferroelectrics |
Volume | 225 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 1999 |
Bibliographical note
Funding Information:This research is supported by the Swedish funding agency NUTEK.
Keywords
- Laser ablation
- PbGeO (PGO)
- Thin film
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics