MAGNETIC AND STRUCTURAL TRANSITION PROPERTIES OF NIOBIUM-DOPED BiFeO3 THIN FILMS

被引：1
|
作者：
Chen, H. Z. [1 ]
Kao, M. C. [1 ]
Young, S. L. [1 ]
机构：
[1] Hsiuping Univ Sci & Technol, Dept Elect Engn, Taichung 412, Taiwan
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2013年 / 27卷 / 15期
关键词：
Sol-gel process; Bismuth ferrite; phase transition; magnetic;
D O I：
10.1142/S0217979213620038
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Niobium-substituted BiFeO3 (BiFe1-xNbxO3 BFNO) thin films were successfully deposited on Pt(111)/Ti/SiO2/Si(100) substrates by spin coating with a sol-gel technology and rapid thermal annealing. The effects of Nb content (x = 0 similar to 0.08) on the microstructure, magnetic and multiferroic properties of thin films were investigated. The result of X-ray diffraction analysis shows that the BFNO thin films have rhombohedral (R3c) to tetragonal (P4mm) phase transition at x = 0.06. The Nb doping in the B-site of BiFeO3 could induce the appearance of the spontaneous magnetization and polarization by the phase transition of rhombohedral-to-tetragonal. The BFNO thin films with x = 0.06 exhibits the maximum remanent magnetization (2Mr) of 5.2 emu/g.
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页数：4
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