Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (4): 388-392.DOI: 10.15541/jim20150460

• Orginal Article • Previous Articles     Next Articles

Synthesis and Magnetoelectric Properties of NiFe2O4-BiFeO3 Nanotubes

HAN Wei, YANG Shu-Min, LI Hai-Tao, QI Yun-Kai, GU Jian-Jun   

  1. (Department of Physics, Hebei Normal University for Nationalities, Chengde 067000, China)
  • Received:2015-09-22 Revised:2015-12-23 Published:2016-04-20 Online:2016-03-25
  • About author:HAN Wei. E-mail: hwly2006@163.com
  • Supported by:
    Natural Science Foundation of Hebei Province (A2012101001);Science and Technology Support Project of Hebei Province (132176278);Scientific Research Project of Higher Schools Youth Foundation of Hebei Province (QN20132013, QN2014340);Finance Bureau Research Projects of Chengde City (CZ2012007, CZ2013002);Science Foundation of Hebei Normal University for Nationalities (201301)

Abstract:

xNFO-(1-x)BFO (NFO-BFO) nanotube arrays were fabricated by means of Sol-Gel method utilizing nanochannel alumina as templates. Scanning electron microscopy study revealed that the outer diameter of nanotube was about 70 nm, and the internal diameter was about 50 nm, the length was about 80 μm. Meanwhile, ferroelectric phase BFO of perovskite structure and ferromagnetic phase NFO of spinel structure were formed through self-assembly growth in X-ray diffraction patterns. Significant ferromagnetic and polarized characteristics of nanotube arrays were demonstrated by means of magnetic and ferroelectric measurement at room temperature, and the direction of easy magnetization was along the long axis. With increasing ratio of NFO, the magnetic and polarized properties of nanotube arrays increased gradually. The calculation results of NFO’s ferromagnetic contribution indicated that magnetoelectric coupling effect existed in the NFO-BFO composite nanotube arrays.

Key words: multiferroic material, nanotube arrays, Sol-Gel, magnetoelectric properties

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