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Polarization switching and fatigue in Pb(Zr0.52Ti0.48)O3 films sandwiched by oxide electrodes with different carrier types.
- Source :
-
Applied Physics Letters . 5/7/2007, Vol. 90 Issue 19, p192907. 3p. 5 Graphs. - Publication Year :
- 2007
-
Abstract
- By using highly conductive p-type La0.7Sr0.3MnO3 (LSMO) and n-type La0.07Sr0.93SnO3 (LSSO) as electrodes, all-oxide Pb(Zr0.52Ti0.48)O3 (PZT) capacitors, LSMO/PZT/LSMO, LSSO/PZT/LSSO, LSSO/PZT/LSMO, and LSMO/PZT/LSSO, have been grown epitaxially on (001)SrTiO3 substrates, and their structure, switching, fatigue, and optical properties were investigated. Strikingly, contrary to the LSMO/PZT/LSMO capacitors, those having the n-type electrode show poor fatigue resistance especially at lower driving frequencies, which was further confirmed by using another n-type oxide electrode, SrTi0.9Sb0.1O3. The results suggest that with a depletion layer at the PZT/LSSO interface, charge accumulation and injection during switching may be responsible for the fatigue. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 90
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 25128067
- Full Text :
- https://doi.org/10.1063/1.2737912