Preparation and characterization of multiferroic CoFe 2O 4/Bi 0.97Ce 0.03FeO 3 coaxial nanotubes

X. L. Liu; M. Y. Li; J. Wang; Z. Q. Hu; Y. D. Zhu; X. Z. Zhao

doi:10.1007/s00339-012-6976-5

Preparation and characterization of multiferroic CoFe ₂O ₄/Bi _0.97Ce _0.03FeO ₃ coaxial nanotubes

X. L. Liu
, M. Y. Li
, J. Wang
, Z. Q. Hu
, Y. D. Zhu
, X. Z. Zhao

Wuhan University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Multiferroic CoFe ₂O ₄ (CFO)/Bi _0.97Ce _0.03FeO ₃ (BCFO) coaxial nanotubes were prepared by a sol-gel template method. Transmission electron microscopy revealed that the coaxial nanotubes featured with inner CFO and outer BCFO nanotubes. Selected area electron diffraction confirmed the coexistence of spinel CFO and perovskite BCFO phases in the coaxial nanotubes. Vibrating sample magnetometer measurements showed that the saturated magnetization of the coaxial nanotubes was 3.3 emu/g, smaller than that of CFO nanotubes. The P-E hysteresis loop of the coaxial nanotubes was of poor shape due to possible high conductivity in the inner CFO nanotubes. Dielectric measurements exhibited that the dielectric constant of the coaxial nanotubes decreased while the dielectric loss increased due probably to the small dielectric constant and high conductivity in the inner CFO nanotube. Ferroelectric and magnetic properties were simultaneously demonstrated in the CFO/BCFO coaxial nanotubes.

Original language	English
Pages (from-to)	829-834
Number of pages	6
Journal	Applied Physics A: Materials Science and Processing
Volume	108
Issue number	4
DOIs	https://doi.org/10.1007/s00339-012-6976-5
State	Published - Sep 2012
Externally published	Yes

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title = "Preparation and characterization of multiferroic CoFe 2O 4/Bi 0.97Ce 0.03FeO 3 coaxial nanotubes",

abstract = "Multiferroic CoFe 2O 4 (CFO)/Bi 0.97Ce 0.03FeO 3 (BCFO) coaxial nanotubes were prepared by a sol-gel template method. Transmission electron microscopy revealed that the coaxial nanotubes featured with inner CFO and outer BCFO nanotubes. Selected area electron diffraction confirmed the coexistence of spinel CFO and perovskite BCFO phases in the coaxial nanotubes. Vibrating sample magnetometer measurements showed that the saturated magnetization of the coaxial nanotubes was 3.3 emu/g, smaller than that of CFO nanotubes. The P-E hysteresis loop of the coaxial nanotubes was of poor shape due to possible high conductivity in the inner CFO nanotubes. Dielectric measurements exhibited that the dielectric constant of the coaxial nanotubes decreased while the dielectric loss increased due probably to the small dielectric constant and high conductivity in the inner CFO nanotube. Ferroelectric and magnetic properties were simultaneously demonstrated in the CFO/BCFO coaxial nanotubes.",

author = "Liu, \{X. L.\} and Li, \{M. Y.\} and J. Wang and Hu, \{Z. Q.\} and Zhu, \{Y. D.\} and Zhao, \{X. Z.\}",

year = "2012",

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doi = "10.1007/s00339-012-6976-5",

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T1 - Preparation and characterization of multiferroic CoFe 2O 4/Bi 0.97Ce 0.03FeO 3 coaxial nanotubes

AU - Liu, X. L.

AU - Li, M. Y.

AU - Wang, J.

AU - Hu, Z. Q.

AU - Zhu, Y. D.

AU - Zhao, X. Z.

PY - 2012/9

Y1 - 2012/9

N2 - Multiferroic CoFe 2O 4 (CFO)/Bi 0.97Ce 0.03FeO 3 (BCFO) coaxial nanotubes were prepared by a sol-gel template method. Transmission electron microscopy revealed that the coaxial nanotubes featured with inner CFO and outer BCFO nanotubes. Selected area electron diffraction confirmed the coexistence of spinel CFO and perovskite BCFO phases in the coaxial nanotubes. Vibrating sample magnetometer measurements showed that the saturated magnetization of the coaxial nanotubes was 3.3 emu/g, smaller than that of CFO nanotubes. The P-E hysteresis loop of the coaxial nanotubes was of poor shape due to possible high conductivity in the inner CFO nanotubes. Dielectric measurements exhibited that the dielectric constant of the coaxial nanotubes decreased while the dielectric loss increased due probably to the small dielectric constant and high conductivity in the inner CFO nanotube. Ferroelectric and magnetic properties were simultaneously demonstrated in the CFO/BCFO coaxial nanotubes.

AB - Multiferroic CoFe 2O 4 (CFO)/Bi 0.97Ce 0.03FeO 3 (BCFO) coaxial nanotubes were prepared by a sol-gel template method. Transmission electron microscopy revealed that the coaxial nanotubes featured with inner CFO and outer BCFO nanotubes. Selected area electron diffraction confirmed the coexistence of spinel CFO and perovskite BCFO phases in the coaxial nanotubes. Vibrating sample magnetometer measurements showed that the saturated magnetization of the coaxial nanotubes was 3.3 emu/g, smaller than that of CFO nanotubes. The P-E hysteresis loop of the coaxial nanotubes was of poor shape due to possible high conductivity in the inner CFO nanotubes. Dielectric measurements exhibited that the dielectric constant of the coaxial nanotubes decreased while the dielectric loss increased due probably to the small dielectric constant and high conductivity in the inner CFO nanotube. Ferroelectric and magnetic properties were simultaneously demonstrated in the CFO/BCFO coaxial nanotubes.

UR - https://www.scopus.com/pages/publications/84865233921

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DO - 10.1007/s00339-012-6976-5

M3 - 文章

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SN - 0947-8396

VL - 108

SP - 829

EP - 834

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 4

ER -

Preparation and characterization of multiferroic CoFe ₂O ₄/Bi _0.97Ce _0.03FeO ₃ coaxial nanotubes

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