Synthesis, structure, and magnetic studies on the CoFe2O4-BiFeO3 nanocomposite films with different number of CoFe2O4 layers

被引：16
作者：
Liu, Y. Q. [1 ,2 ]
Zhang, B. [3 ]
Wu, Y. H. [1 ,2 ]
Zhang, J. [1 ,2 ]
Li, D. [1 ,2 ]
Liu, Y. [1 ,2 ]
Wei, M. B. [1 ,2 ]
Yang, J. H. [1 ,2 ]
机构：
[1] Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Jilin, Peoples R China
[2] Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Siping 136000, Jilin, Peoples R China
[3] Sichuang Univ, Inst Elect Engn & Automat, Chengdu 610065, Sichuan, Peoples R China
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2013年 / 61卷
基金：
中国国家自然科学基金;
关键词：
Composites; Thin films; Sol-gel chemistry; Electron diffraction; Magnetic properties; THIN-FILMS; MULTIFERROICS; BIFEO3;
D O I：
10.1016/j.spmi.2013.05.020
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
;w The multiferroic heterostructures consisting of CoFe2O4 (CFO)-BiFeO3 (BFO) layers with increasing the number of CFO layers (2, 4,6 and 8) have been grown on LaNiO3 buffered Si (1 0 0) substrate by a simple sol-gel spin-coating route. X-ray diffraction (XRD) shows that the CFO and BFO phases have been successfully retained in the heterostructures and the films are polycrystalline. The high resolution transmission electron microscope (HRTEM) images show the clear interplanar distances and the interface between the two phases. The magnetization (M) versus field (H) loops reveal that, with increasing the CFO layers, the magnetization of CFO-BFO films will be enhanced. The M-s, M-r and H-c of the composite film with 8 CFO layers are measured to be the largest values of 1304 emu/cm(3), 562 emu/cm(3) and 2074 Oe, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：174 / 180
页数：7
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