Synthesis and characterization of nanocrystalline zinc ferrite films prepared by liquid phase deposition

被引:34
作者
Caruntu, G [1 ]
Bush, GG
O'Connor, CJ
机构
[1] Univ New Orleans, Dept Chem, Adv Mat Res Inst, New Orleans, LA 70148 USA
[2] Lockheed Missiles & Spacer Co, Div Res & Dev, Palo Alto, CA USA
关键词
D O I
10.1039/b401192a
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
We report on the synthesis of highly uniform, single phase zinc ferrite films prepared through a single step low temperature reaction by the liquid phase deposition (LPD) method. X-ray diffraction, TGA and EDX measurements support the assumption that the as-deposited films are constituted from a mixture of crystallized FeOOH and amorphous Zn(OH)(2). Upon heat treatment in air at 600 degreesC for one hour the intermediates are subsequently converted into the corresponding zinc ferrites. The films with adjustable chemical compositions are identified as having a spinel-type crystal structure and present a spherical or rod-like microstructure, depending on the Zn content. The magnetic films present a superparamagnetic behavior above blocking temperatures which decrease with increasing Zn content, and are ferromagnetic at 5 K with coercivities ranging between 797.8 and 948.5 Oe.
引用
收藏
页码:2753 / 2759
页数:7
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