Hydrothermal growth of ferromagnetic Fe-doped TiO2 films

被引：16

作者：

Chan, Kelvin Y. S. ^{[1
]}

Goh, Gregory K. L. ^{[1
]}

机构：

[1] Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 16期

关键词：

ferromagnetism; epitaxial; thin film; anatase; Fe-doped; hydrothermal;

D O I：

10.1016/j.tsf.2007.07.068

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polycrystalline Fe-doped TiO2 anatase films were deposited on (001) oriented SrTiO3 single crystal substrates at temperatures less than 200 degrees C from acidic aqueous solutions of titanyl sulfate and iron (III) nitrate. Epitaxial anatase TiO2 films were obtained when the films were annealed in air at 900 degrees C. Room-temperature ferromagnetic Fe-doped TiO2 thin films were obtained after repeated deposition and annealing steps. The observed saturation magnetization (> 0.28 mu(B)/Fe) could not be attributed to the presence of secondary phase magnetic iron oxides or iron clusters. (c) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：5582 / 5585

页数：4

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