Ferromagnetic properties of anatase Ti1-xFexO2-δ thin films grown by sol-gel method

被引：5
|
作者：
Kim, Kwang Joo [1 ]
Park, Young Ran [1 ]
Ahn, Geun Young [2 ]
Kim, Chul Sung [2 ]
Park, Jae Yun [3 ]
机构：
[1] Konkuk Univ, Dept Phys, Seoul 143701, South Korea
[2] Kookmin Univ, Dept Phys, Seoul 136702, South Korea
[3] Univ Incheon, Dept Mat Sci & Engn, Inchon 402749, South Korea
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 01期
关键词：
Anatase; Ferromagnetism; Thin film; Doping; Mossbauer;
D O I：
10.1016/j.jmmm.2006.02.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic and electronic properties of Fe-doped anatase TiO2-delta thin films grown by a sol-gel method have been investigated by vibrating-sample magnetometry (VSM), conversion electron Mossbauer spectroscopy ( CEMS), and Hall effect measurements. VSM measurements revealed that the anatase Ti1-xFexO2-delta films exhibit ferromagnetic behavior at room temperature for a certain range of x. CEMS spectra revealed that Fe2+ and Fe3+ ions coexist, substituting the octahedral Ti4+ sites. By appropriate Fe doping, the Ti1-xFexO2-delta films exhibited p-type character but the observed room-temperature ferromagnetism turned out to be independent of the hole concentration. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：E152 / E154
页数：3
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