Journal of Inorganic Materials ›› 2017, Vol. 32 ›› Issue (10): 1018-1022.DOI: 10.15541/jim20160630

• Orginal Article • Previous Articles     Next Articles

Structure and Property of Bi5Ti3FeO15 Film

HUANG Zhi-Deng, ZHAO Hong-Yang, MA Zhi-Bin, FU Qiu-Ming, TAO Hong, FAN Zi-Ran   

  1. (Key Laboratory of Plasma Chemical and Advanced Materials of Hubei Province, Department of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China)
  • Received:2016-11-15 Revised:2016-12-28 Published:2017-10-20 Online:2017-09-21
  • About author:HUANG Zhi-Deng. E-mail: huangzdreg@126.com
  • Supported by:
    National Natural Science Foundation of China (51402327, 91622122);Science and Technology Research of Hubei Provincial Department of Education (2016CFB387)

Abstract:

Bi5Ti3FeO15 (BTFO15) thin films were grown on Pt/Ti/SiO2/Si substrate by pulsed laser deposition (PLD) method. The structure, magnetic properties, ferroelectric properties, and ferroelectric domains were studied by using X ray diffraction, scanning electron microscopy and scanning TEM high-angle annular dark-field (HAADF STEM). Results showed that the BTFO15 film had high crystallization with perfect layered lattice structure. It stacked like a sandwich which three Bi layers and Ti(Fe)O6 octahedra were sandwiched by two closely stacked Bi layers. In addtion, room-temperature magnetic hystersis loop and ferroelectric hysteresis loop confirmed that the BTFO15 film had weak ferromagnetism and ferroelectricity. The piezo response force microscope was used to study the domain and domain switching, the in-plane and out-of-plane PFM images were obtained by applying the voltage of ±3 V and ±10 V. These results are important to understand the relationship between microstructure and property of multiferroic materials.

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Key words: Bi5Ti3FeO15 film, multiferroic, ferroelectric domain

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