Structure-Dependent Electrical, Optical and Magnetic Properties of Mn-Doped BiFeO3 Thin Films Prepared by the Sol-Gel Process

Jin Li, Kaitong Liu, Jinbao Xu, Lei Wang, Liang Bian, Fanglong Xu

Abstract


The effect of Mn doping on crystal structure, electric, magnetic and optical properties of BiFeO3 thin films prepared via the sol-gel process on indium tin oxide/glass substrates was studied. X-ray diffraction analysis indicated that Mn-doped BiFeO3 thin films presented single tetragonal structure with P4mm symmetry. Compared with the pure BiFeO3 film, the resistivity was found to increase while leakage current density and optical band gap decreased in low Mn content (?7.5%) doped BiFeO3 system. An evident magnetic hysteresis loop was observed for all the thin films at room temperature and Mn-doped BiFeO3 films showed a larger saturated magnetization than pure BiFeO3 film.


Full Text: PDF DOI: 10.5539/jmsr.v2n3p75

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Journal of Materials Science Research   ISSN 1927-0585 (Print)   ISSN 1927-0593 (Online)

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