| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Synthesis and Multiferroic Properties of BiFeO3 Nanotubes |
| WANG Jing1, LI Mei-Ya1,2, LIU Xiao-Lian1, PEI Ling1, LIU Jun1, YU Ben-Fang1, ZHAO Xing-Zhong1,2 |
| 1Department of Electronic Science and Technology, School of Physical Science and Technology, Wuhan University, Wuhan 4300722Key Laboratory of Acoustic and Photonic Material and Device of the Ministry of Education, Wuhan University, Wuhan 430072 |
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| Cite this article: |
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WANG Jing, LI Mei-Ya, LIU Xiao-Lian et al 2009 Chin. Phys. Lett. 26 117301 |
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Abstract Highly ordered BiFeO3(BFO) nanotubes with about 200nm in diameter and 60μm in length are fabricated by a sol-gel AAO template method. A perovskite-type structure of BFO is confirmed in the nanotubes by transmission electron microscopy and selected area electron diffraction analysis. The coexistence of ferroelectric and ferromagnetic ordering of these BFO nanotubes at room temperature is demonstrated, giving a remnant polarization of 26μC/cm2, a low coercive electric field of 60kV/cm, and a magnetization of 0.18emu/g. In addition, it is found that the leakage behavior of these nanotubes is dominated by the ohmic contact mechanism.
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| Keywords:
73.63.Fg
76.50.+g
77.80.-e
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Received: 27 July 2009
Published: 30 October 2009
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| PACS: |
73.63.Fg
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(Nanotubes)
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76.50.+g
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(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
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77.80.-e
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(Ferroelectricity and antiferroelectricity)
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