초록

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Abstract ▼ AI-Helper

We adopted the $Pt/SiO_{2}/Si$ and the $Ir/SiO_{2}/Si$ substrates of which buffer layer is $PbTiO_{3}$ to improve electrode and interfacial properties of PZT thin film deposited by reactive sputtering method using metal target in this study. We got PZT thin film to h...

We adopted the $Pt/SiO_{2}/Si$ and the $Ir/SiO_{2}/Si$ substrates of which buffer layer is $PbTiO_{3}$ to improve electrode and interfacial properties of PZT thin film deposited by reactive sputtering method using metal target in this study. We got PZT thin film to have highly oriented(100) structure and good crystallinity using buffer layer in Pt bottom-electrode, though randomly oriented PZT thin film was obtained without buffer layer. Although great improvement of PZT phase formation on Ir bottom-electrode with buffer layer was not observed, we observed the increase of remennant polarization and the decrease of coercive field compared with properties of PZT thin films on the Pt bottom-electrode. So we got the results of the increase of dielectric constant using buffer layer on fabrication of PZT thin film and the better dielectric properties in PZT thin film using Ir bottom-electrode compared with that using Pt bottom-electrode.