Number：

01097001

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Name：

梁元彰

Titles：

Associate professor

Author：

Yuan-Chang Liang , Yung-Ching Liang, and J.P.Chu

Paper name：

Physical Properties of Strained Ba_0.5Sr_0.5(Ti,Mn)O₃ Thin Films Buffered with La_0.68Ba_0.32MnO₃ Conductive Layers

Name of activity：

Electrochemical and Solid-State Letters

Keywords：

Abstract：

Ba_0.5Sr_0.5TiO₃ (BST) films, 600A thick and 3 mol % Mn-doped, deposited on La_0.03Ba_0.02 MnO_0.5 (LBMO)-coated LaNiO₃/Pt/Ti/SiO₂/Si substrales exhibit elongation along the c-axis lattice. A suitable degree of lauice distortion of the BST films increases the dielectric constant. The nonlinear relationship between the dielectric constant and the applied bias voltage indicates that partially strained BST films on the LBMO buffer layers have ferroelectric propertics. An LBMO buffer layer deposited at a higher growth termperature is comprised of larger grains, and therefore a rougher surface structure and increased leakage current of the deposited BST film.

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