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上海大学学报(自然科学版)

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脉冲激光镀膜工艺制备BiFeO3-CoFe2O4多铁性复合薄膜

程晋荣，朱岩岩，陈建国，俞圣雯，吴文彪，金灯仁，孟中岩
  

  1. 上海大学 材料科学与工程学院，上海 200072
  • 收稿日期:2008-05-05 修回日期:1900-01-01 出版日期:2008-10-23 发布日期:2008-10-23
  • 通讯作者: 程晋荣

Multiferroic BiFeO3-CoFe2O4 Composite Films Prepared by Pulded Laser Deposition

CHENG Jin-rong,ZHU Yan-yan,CHEN Jian-guo,YU Sheng-wen,WU Wen-biao,JIN Deng-ren,MENG Zhong-yan   

  1. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
  • Received:2008-05-05 Revised:1900-01-01 Online:2008-10-23 Published:2008-10-23
  • Contact: CHENG Jin-rong

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摘要： 采用脉冲激光镀膜（PLD）工艺，在Pt（111）/Ti/SiO2/Si衬底上制备了柱状结构0.7BiFeO3-0.3CoFe2O4（BFO-CFO）多铁性复合薄膜.在薄膜的沉积过程中，通过自组装生长实现钙钛矿结构BiFeO3和尖晶石结构CoFe2O4相的形成以及两相分离.探索了BFO-CFO复合薄膜的生长条件和机制，研究了薄膜厚度对BFO-CFO复合薄膜结构和性能的影响.

关键词: 多铁性复合薄膜, 厚度, 脉冲激光工艺, 柱状结构, 自组装生长

Abstract: Multiferroic 0.7BiFeO3-0.3CoFe2O4(BFO-CFO) composite films were prepared on the Pt（111）/Ti/SiO2/Si substrate by the pulsed laser deposition method. In the deposition process, the perovskite BiFeO3 and the spinel structured CoFe2O4 phases were formed and separated by selfassembling growth. The growth condition and mechanism of BFO-CFO composite films, and the effect of film thickness on the structure and properties of BFO-CFO films were investigated.

Key words: pillar structure, pulsed laser deposition, self-assembling growth, thickness, multiferroic composite films

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