Structural, Dielectric and Ferroelectric Properties of Mixed Texture PbZr0.20Ti0.80O3Thin Films Prepared by a Chemical Method

Autor:	José Antonio Eiras, N. B. Lima, A. L. Bacichetti, M. Mir, Y. P. Mascarenhas, R. G. Mendes
Rok vydání:	2006
Předmět:	Permittivity Materials science Dielectric Pole figure Condensed Matter Physics Lead zirconate titanate Ferroelectricity Electronic Optical and Magnetic Materials Pyroelectricity chemistry.chemical_compound chemistry Texture (crystalline) Thin film Composite material
Zdroj:	Ferroelectrics. 335:249-255
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150190600691569
Popis:	Titanium-rich lead zirconate titanate compositions are very attractive for pyroelectric applications. Crystalline texture can result in significant thin film properties optimization. In contrast, preparation of textured films requires specific processing parameters. In this work, PbZr0.20Ti0.80O3-PZT20/80 thin films with a mixed (001)(100)/(111) texture on Pt(111)/Ti/SiO2/Si substrates were obtained through a chemical method by optimizing thermal treatment conditions. Pole figure exhibited a 6.5% texture for the (100) crystalline plane. Dielectric constant and dissipation values for textured PZT films at 100 kHz were 159 and 0.04, respectively. Remanent polarization and coercive field were 13 μC/cm2 and 119 kV/cm, respectively.
Databáze:	OpenAIRE
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