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The structural and electrical properties of oriented films prepared by metal organic deposition method

โœ Scribed by Xiaofei Wang; Xiaomei Lu; Huifeng Bo; Yaoyang Liu; Yanchi Shen; Xiaobo Wu; Wei Cai; Yi Kan; Chao Zhang; Yunfei Liu; Fengzhen Huang; Jinsong Zhu


Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
784 KB
Volume
150
Category
Article
ISSN
0038-1098

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โœฆ Synopsis


Strontium titanate films with high a-axis orientation [a (100) = 94.1%] and random orientation were deposited on (111) Pt/Ti/SiO 2 /Si substrates by a concentration controlling of the precursor solution during the metal organic deposition process. Topography of samples was investigated by atomic force microscopy after annealing at 800 ยฐC. X-ray diffraction found that the degree of a-axis orientation increased with increasing annealing temperature. The leakage current and the dielectric property were strongly dependent on the film orientation, and the possible causes of orientation dependence were discussed.


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