Effect of Co doping on the structure, optical and magnetic properties of LaAlO3 thin films

被引：0
|
作者：
Gang Wu
Hongmei Deng
Weijun Wang
Kezhi Zhang
Huiyi Cao
Pingxiong Yang
Junhao Chu
机构：
[1] East China Normal University,Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics
[2] Shanghai University,Laboratory for Microstructures
来源：
Journal of Materials Science: Materials in Electronics | 2014年 / 25卷
关键词：
Perovskite; Quartz Substrate; LaAlO3; Dope Transition Metal; Cobalt Nitrate Hexahydrate;
D O I：
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中图分类号：
学科分类号：
摘要：
LaAl1−xCoxO3 (x = 0, 0.05 and 0.10) thin films were fabricated on quartz substrates by sol–gel method. X-ray diffraction data indicate that all thin films belong to perovskite LaAlO3, and there is no secondary phase. Two obvious Raman peaks are observed in the Raman spectra, and the 113 cm−1 peak is assigned to A1 mode of perovskite LaAlO3 while the 696 cm−1 peak is caused by the Co–O stretching vibration. The band gap of the films decreases from 5.66 to 5.40 eV with the Co composition increasing from 0 to 10 %. The magnetization of the films was investigated, and it enhances significantly with increase of the Co content.
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页码：3137 / 3140
页数：3
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