Syntheses of relaxor/ferroelectric superlattice thin films PB(Sc1/2NB1/2)O3/PbTi03 and their dielectric properties - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Applied Physics Letters Année : 2007

Syntheses of relaxor/ferroelectric superlattice thin films PB(Sc1/2NB1/2)O3/PbTi03 and their dielectric properties

Résumé

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.
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Dates et versions

hal-00176600 , version 1 (04-10-2007)

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Citer

A. Asanuma, Y. Uesu, C. Malibert, Jean-Michel Kiat. Syntheses of relaxor/ferroelectric superlattice thin films PB(Sc1/2NB1/2)O3/PbTi03 and their dielectric properties. Applied Physics Letters, 2007, 90 (24), pp.242910. ⟨10.1063/1.2748091⟩. ⟨hal-00176600⟩
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