We investigate the effect of high magnetic-field annealing on the microstructural, ferroelectric, and magnetic properties of Bi6Fe1.4Co0.6Ti3O18 thin films. The magnetic field can lower the energy barrier for nucleation and improve the grain connectivity. The application of magnetic field of 6T parallel to the film plane can substantially enhance the remnant polarization Pr from 18.1 to 29 μC/cm2 as a result of the variation in grain size and growth orientation caused by magnetic field annealing. Moreover, the remnant magnetization Mr is substantially improved from 2.48 to 4.56 emu/cm3 arising from the enhanced exchange coupling due to the better grain connectivity. These results demonstrate that high magnetic-field annealing is an effective way to optimize multiferroic properties of the Aurivillius compounds.
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30 November 2015
Research Article|
December 02 2015
Enhanced multiferroic properties of Aurivillius Bi6Fe1.4Co0.6Ti3O18 thin films by magnetic field annealing
X. Z. Zuo;
X. Z. Zuo
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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J. Yang;
J. Yang
a)
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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B. Yuan;
B. Yuan
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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D. P. Song
;
D. P. Song
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
2
University of Science and Technology of China
, Hefei 230026, People's Republic of China
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X. W. Tang;
X. W. Tang
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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K. J. Zhang
;
K. J. Zhang
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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X. B. Zhu;
X. B. Zhu
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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W. H. Song;
W. H. Song
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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J. M. Dai;
J. M. Dai
b)
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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Y. P. Sun
Y. P. Sun
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
3High Magnetic Field Laboratory,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
4Collaborative Innovation Center of Advanced Microstructures,
Nanjing University
, Nanjing 210093, People's Republic of China
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X. Z. Zuo
1
J. Yang
1,a)
B. Yuan
1
D. P. Song
1,2
X. W. Tang
1
K. J. Zhang
1
X. B. Zhu
1
W. H. Song
1
J. M. Dai
1,b)
Y. P. Sun
1,3,4
1Key Laboratory of Materials Physics, Institute of Solid State Physics,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
2
University of Science and Technology of China
, Hefei 230026, People's Republic of China
3High Magnetic Field Laboratory,
Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
4Collaborative Innovation Center of Advanced Microstructures,
Nanjing University
, Nanjing 210093, People's Republic of China
a)
Electronic mail: [email protected]
b)
Electronic mail: [email protected]
Appl. Phys. Lett. 107, 222901 (2015)
Article history
Received:
October 16 2015
Accepted:
November 21 2015
Citation
X. Z. Zuo, J. Yang, B. Yuan, D. P. Song, X. W. Tang, K. J. Zhang, X. B. Zhu, W. H. Song, J. M. Dai, Y. P. Sun; Enhanced multiferroic properties of Aurivillius Bi6Fe1.4Co0.6Ti3O18 thin films by magnetic field annealing. Appl. Phys. Lett. 30 November 2015; 107 (22): 222901. https://doi.org/10.1063/1.4937001
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