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Título: | Dielectric properties of Pb0.5Ca0.5TiO3 thin films |
Autor: | Mendiola, J.; Jiménez, Ricardo CSIC ORCID; Ramos, Pablo CSIC ORCID; Alemany, C.; Bretos, Íñigo CSIC ORCID; Calzada, M. L. CSIC ORCID | Fecha de publicación: | jul-2005 | Editor: | American Institute of Physics | Citación: | Journal of Applied Physics 98(2): 024106 (2005) | Resumen: | A dielectric study is carried out on chemical solution-deposited calcium lead titanate (Pb,Ca)TiO3 thin films, with calcium contents of 50 at. %, by measuring capacitance versus voltage as a function of temperature. A moderate ferroelectric activity is observed that remains in a broad temperature range, and that depends on the applied voltage and thickness of the films. This behavior is associated with the built-in fields generated as result of the space charge inside the films. From the diffusivity of dielectric constant versus temperature (K′−T) curves, the relaxorlike nature of the films is also demonstrated. The feasibility of these films for fabrication of voltage tuneable capacitors and charge store devices (dynamic random access memories) is confirmed. | Descripción: | 6 pages, 9 figures. | Versión del editor: | http://dx.doi.org/10.1063/1.1984072 | URI: | http://hdl.handle.net/10261/22304 | DOI: | 10.1063/1.1984072 | ISSN: | 0021-8979 |
Aparece en las colecciones: | (ICMM) Artículos |
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Dielectric properties.pdf | 152,02 kB | Adobe PDF | Visualizar/Abrir |
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