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Structure, ferroelectric properties, and magnetic properties of the La-doped bismuth ferrite

Journal Article


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Abstract


  • Bi1-xLaxFeO3 ceramics with x=0, 0.1, 0.2, and 0.3 have been synthesized by solid state reaction, starting from metal oxides. A series of structure transformations is found to depend upon the doping level. Below 10% La doping, Bi1-xLaxFeO3 maintains the rhombohedral structure of BiFeO3. However, for Bi0.8La0.2FeO3 and Bi0.7La0.3FeO3, the structures change to the orthorhombic and tetragonal, respectively. La doping significantly reduces electric leakage and leads to successful observation of electrical polarization hysteresis loops. Doping with La also enhances the ferromagnetic moment, due to the broken cycloid spin structure caused by the changes in the crystalline structure.

UOW Authors


  •   Cheng, Zhenxiang
  •   Li, Ai Hua (external author)
  •   Wang, Xiaolin
  •   Dou, Shi Xue
  •   Ozawa, Kiyoshi (external author)
  •   Kimura, Hideo (external author)
  •   Zhang, S J. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2008

Citation


  • Cheng, Z., Li, A., Wang, X., Dou, S. Xue., Ozawa, K., Kimura, H., Zhang, S. & Shrout, T. (2008). Structure, ferroelectric properties, and magnetic properties of the La-doped bismuth ferrite. In Conference on Magnetism and Magnetic Materials, NOV 05-09, 2007, Tampa, FL, USA. Journal of Applied Physics, 103 (7), 07E507-1-07E507-3.

Scopus Eid


  • 2-s2.0-42149087712

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1038&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/39

Has Global Citation Frequency


Start Page


  • 07E507-1

End Page


  • 07E507-3

Volume


  • 103

Issue


  • 7

Place Of Publication


  • USA

Abstract


  • Bi1-xLaxFeO3 ceramics with x=0, 0.1, 0.2, and 0.3 have been synthesized by solid state reaction, starting from metal oxides. A series of structure transformations is found to depend upon the doping level. Below 10% La doping, Bi1-xLaxFeO3 maintains the rhombohedral structure of BiFeO3. However, for Bi0.8La0.2FeO3 and Bi0.7La0.3FeO3, the structures change to the orthorhombic and tetragonal, respectively. La doping significantly reduces electric leakage and leads to successful observation of electrical polarization hysteresis loops. Doping with La also enhances the ferromagnetic moment, due to the broken cycloid spin structure caused by the changes in the crystalline structure.

UOW Authors


  •   Cheng, Zhenxiang
  •   Li, Ai Hua (external author)
  •   Wang, Xiaolin
  •   Dou, Shi Xue
  •   Ozawa, Kiyoshi (external author)
  •   Kimura, Hideo (external author)
  •   Zhang, S J. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2008

Citation


  • Cheng, Z., Li, A., Wang, X., Dou, S. Xue., Ozawa, K., Kimura, H., Zhang, S. & Shrout, T. (2008). Structure, ferroelectric properties, and magnetic properties of the La-doped bismuth ferrite. In Conference on Magnetism and Magnetic Materials, NOV 05-09, 2007, Tampa, FL, USA. Journal of Applied Physics, 103 (7), 07E507-1-07E507-3.

Scopus Eid


  • 2-s2.0-42149087712

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1038&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/39

Has Global Citation Frequency


Start Page


  • 07E507-1

End Page


  • 07E507-3

Volume


  • 103

Issue


  • 7

Place Of Publication


  • USA