脉冲激光镀膜工艺制备BiFeO_3-CoFe_2O_4多铁性复合薄膜  

Multiferroic BiFeO_3-CoFe_2O_4 Composite Films Prepared by Pulded Laser Deposition

作　　者：程晋荣[1] 朱岩岩[1] 陈建国[1] 俞圣雯[1] 吴文彪[1] 金灯仁[1] 孟中岩[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2008年第5期487-491,共5页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(5047209850711130241);上海市教委基金资助项目(07ZZ14)

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BiFeO3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.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.

关 键 词：多铁性复合薄膜 脉冲激光工艺 柱状结构 自组装生长 厚度 

分 类 号：TB332[一般工业技术—材料科学与工程]