jap banner
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

Journal of Applied Physics / Volume 103 / Issue 9 / DIELECTRICS AND FERROELECTRICITY

J. Appl. Phys. 103, 094105 (2008); http://dx.doi.org/10.1063/1.2917394 (4 pages)

Synthesis and characterization of composite MgFe2O4–BaTiO3 multiferroic system

S. Y. Tan1, S. R. Shannigrahi1, S. H. Tan2, and F. E. H. Tay2

1Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore
2Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore

View MapView Map

(Received 6 November 2007; accepted 4 March 2008; published online 6 May 2008)

Multiferroic ceramics with the general formula (x)MgFe2O4–(1−x)BaTiO3 (x = 0.4, 0.5, and 0.6) were synthesized by solid-state sintering process. From the x-ray diffraction analysis, it was observed that almost no chemical reaction occurs between the ferrite and the ferroelectric materials used to form the diphase composite systems. No impure phase was observed in all the sintered composite systems. Leakage current density, ferroelectric properties and dielectric properties were found to improve with the addition of the ferroelectric phase. For the composite with the least amount of ferrite, the values of remnant polarization (2Pr) before and after dc magnetic poling at 7 kOe for 1 h were found to be 1.35 and 2.12 μC/cm2, respectively. This showed marked improvement as high as 57% and confirmed the coupling of the electrical dipoles with the magnetic field applied. All the studied composite systems proved to be multiferroic in nature. The highest magnetoelectric coupling coefficient of 50.2 mV/cm Oe was measured at dc magnetic field of 10 kOe along with ac frequency of 50 Hz at room temperature for the 0.6MgFe2O4–0.4BaTiO3 composite system. Magnetoelectric effect at resonance frequency increases by a factor of 80 compared to the other frequencies for such composite systems.

© 2008 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL PROCEDURES
  3. RESULTS AND DISCUSSION
  4. CONCLUSION

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

barium compounds, ferroelectric ceramics, leakage currents, magnesium compounds, magnetoelectric effects, multiferroics, sintering, X-ray diffraction

PACS

  • 81.05.Je

    Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides)

  • 81.20.Ev

    Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

  • 77.84.Lf

    Composite materials

  • 75.80.+q

    Magnetomechanical effects, magnetostriction

  • 75.50.Cc

    Other ferromagnetic metals and alloys

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2917394

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.

    References

    V. Corral-Flores, D. Bueno-Baques, D. Carrillo-Flores, and J. A. Matutes-Aquino, J. Appl. Phys. 99, 08J503 (2006)JAPIAU00009900000808J503000001.

    S. R. Shannigrahi, A. Huang, N. Chandrasekhar, D. Tripathy, and A. O. Adeyeye, Appl. Phys. Lett. 90, 022901 (2007)APPLAB000090000002022901000001.

    G. Srinivasan, E. T. Rasmussen, and R. Hayes, Phys. Rev. B 67, 014418 (2003).

    G. Catalan, Appl. Phys. Lett. 88, 102902 (2006)APPLAB000088000010102902000001.

    M. I. Bichurin, D. A. Filippov, V. M. Petrov, V. M. Lalestin, N. Paddubnaya, and G. Srinivasan, Phys. Rev. B 68, 132408 (2003).

    C. Gao, B. Hu, X. Li, C. Liu, M. Murakami, K.-S. Chang, C. J. Long, M. Wuttig, and I. Takeuchi, Appl. Phys. Lett. 87, 153505 (2005)APPLAB000087000015153505000001.

    G. Srinivasan, C. P. De Vreugd, V. M. Laletin, N. Paddubnaya, M. I. Bichurin, V. M. Petrov, and D. A. Filippov, Phys. Rev. B 71, 184423 (2005).


For access to citing articles, you need to log in.


Figures (8)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Synthesis and characterization of composite MgFe2O4–BaTiO3 multiferroic system
Go to AIP Home   © AIP Publishing LLC
close