Structural and magnetic properties of magnetite-containing epitaxial iron oxide films grown on MgO(001) substrates

被引:15
作者
Kado, T. [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Nanoelect Res Inst, Tsukuba, Ibaraki 3058568, Japan
关键词
D O I
10.1063/1.2840118
中图分类号
O59 [应用物理学];
学科分类号
摘要
The structural and magnetic properties of three kinds of Fe oxide films-Fe3O4, a berthollide type of Fe oxide, and a composite of Fe3O4 and FeO-grown on MgO(001) substrates epitaxially at 423 K by pulsed laser deposition were investigated by magnetoresistance measurement and grazing incidence x-ray diffraction. The Fe3O4 film had the largest negative magnetoresistance and the roughest film-substrate interface. The very close lattice matching of single-phase Fe3O4 and MgO facilitates the formation of antiphase boundaries due to natural growth defects and of a rough interface probably due to cation interdiffusion. (c) 2008 American Institute of Physics.
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页数:4
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