Physics – Condensed Matter – Materials Science
Scientific paper
2009-07-21
Physics
Condensed Matter
Materials Science
21 pages, 6 figures
Scientific paper
We have investigated the size effect in lead zirconate titanate (PZT) thin films with a range of manganese (Mn) doping concentrations. We found that the size effect in the conventional Pt/PZT/Pt thin-film capacitors could be systematically reduced and almost completely eliminated by increasing Mn doping concentration. The interfacial layer at the electrode-film interface appears to disappear almost entirely for the PZT films with 2% Mn doping levels, confirmed by the fits using the conventional in-series capacitor model. Our work indicates that the size effect in ferroelectrics is extrinsic in nature, supporting the work by Saad et al. Other implications of our results have also been discussed. By comparing a variety of experimental studies in the literature we propose a scenario that the dead layer between PZT (or barium strontium titanate, BST) and metal electrodes such as Pt and Au might have a defective pyrochlore/fluorite structure (possibly with a small portion of ferroelectric perovskite phase).
Lou X. J.
Wang Jeffrey
No associations
LandOfFree
Effect of manganese doping on the size effect of lead zirconate titanate thin films and the extrinsic nature of dead layers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effect of manganese doping on the size effect of lead zirconate titanate thin films and the extrinsic nature of dead layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of manganese doping on the size effect of lead zirconate titanate thin films and the extrinsic nature of dead layers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-174778