Syntheses of relaxor/ferroelectric superlattice thin films PB(Sc1/2NB1/2)O3/PbTi03 and their dielectric properties
| Autor: | Asanuma, A., Uesu, Y., Malibert, C., Kiat, Jean-Michel |
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| Přispěvatelé: | Laboratoire Structures, Propriétés et Modélisation des solides (SPMS), Institut de Chimie du CNRS (INC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2007, 90 (24), pp.242910. ⟨10.1063/1.2748091⟩ |
| ISSN: | 0003-6951 |
| DOI: | 10.1063/1.2748091⟩ |
| Popis: | Superlattice (SL) thin films with different periods and composition ratios of Pb(Sc1∕2Nb1∕2)O3 and PbTiO3 (PT), inside and outside the morphotropic phase boundary, are synthesized by a pulsed laser deposition method. High order SL reflections are observed by x-ray diffraction, from which the SL period and correlation length are determined. The coherency of the SL structure is found to extend over the whole film in the thinner films. A maximum dielectric constant of 1800 with a dielectric loss of 0.05 is obtained in the frequency range of 1–104Hz for a SL with average composition of 25% of PT. |
| Databáze: | OpenAIRE |
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