Synthesis of CoFe2O4 nanowire arrays by sol-gel template method

被引:103
作者
Ji, GB [1 ]
Tang, SL
Xu, BL
Gu, BX
Du, YW
机构
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/j.cplett.2003.08.090
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
CoFe2O4 nanowire arrays with an average diameter of about 40 nm were prepared in porous anodic aluminum oxide (AAO) template using sol-gel process. Transmission electron microscopy (TEM) diffraction pattern and X-ray diffraction (XRD) showed that the nanowires were polycrystalline phase. Magnetic measurements showed the arrays of nanowires did not show a preferential magnetic orientation, the reason was briefly discussed. The effect of heating rate on the structure and magnetic properties of CoFe2O4 nanowire arrays was investigated. The result showed that the coercivity decreased with the increase of the heating rate. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:484 / 489
页数:6
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