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Structure and Magnetic Property Changes of 2–2-Type BaTiO3–CoFe2O4 Composite Thin Films Induced by Magnetic Field Annealing

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Abstract

BaTiO3–CoFe2 O 4 composite thin films with different thicknesses were fabricated via chemical solution deposition. Magnetic annealing and non-field annealing processes were applied in the sintering process, respectively. Variations of the structure and magnetic properties of the composite films induced by the magnetic annealing were investigated. It is found that the mean grain size and grain boundary are increased and decreased, respectively. For the magnetic-annealed films, the internal strain is reduced with the increase of film thickness. Magnetic measurements show that the M s is also increased with the film thickness and the magnetic-annealed films have bigger M s values than the non-field-annealed films. Based on the experimental results, it can be concluded that the effect of magnetic annealing on the structure and properties of the composite films is decreased with the increase of film thickness.

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Acknowledgments

This work was supported by the Key Scientific Research Projects of Colleges and Universities in Henan Province (nos. 16A430012 and 16A150001) and the Research Fund of Anyang Institute of Technology (nos. YJJ2015021 and YJJ2015022).

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Authors and Affiliations

  1. College of Mathematics and Physics, Anyang Institute of Technology, Anyang, 455000, China

    Yuqiang Dai, Qianqian Gao, Zhendong Liu, Chaojun Cui, Xianchang Li & Chengbo Li

  2. College of Chemistry and Environmental Engineering, Anyang Institute of Technology, Anyang, 455000, China

    Liguo Yang

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  1. Yuqiang Dai
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  2. Qianqian Gao
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  3. Zhendong Liu
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  4. Liguo Yang
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  7. Chengbo Li
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Correspondence to Qianqian Gao.

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Dai, Y., Gao, Q., Liu, Z. et al. Structure and Magnetic Property Changes of 2–2-Type BaTiO3–CoFe2O4 Composite Thin Films Induced by Magnetic Field Annealing. J Supercond Nov Magn 30, 1303–1308 (2017). https://doi.org/10.1007/s10948-016-3933-0

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  • DOI: https://doi.org/10.1007/s10948-016-3933-0

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