用原子层沉积系统生长SrTiO3以提高其电学特性

2008-09-16 09:11  下载量:146

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用原子层沉积系统生长(SrTiO3)STO薄膜,在370°C,生长速率0.15 Å/ cycle. The adoption of a thin crystallized seed layer resulted in crystallized perovskite STO films at the as-deposited state without higher temperature post-annealing. A tox of 0.72 nm(dielectric constant of 108)and a low leakage current density(10−7A/cm2 at 0.8 V)were obtained from a planar capacitor structure consisting of Pt/20-nm-thick STO/Ru(bottom).

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