Skip to main content
SpringerLink
Log in

Structural and dielectric properties of La substituted polycrystalline Ca(Ti0.5Fe0.5)O3

  • Research Article
  • Published:
Materials Science-Poland

Abstract

Polycrystalline Ca1−x La x (Ti0.5Fe0.5)O3 were prepared by the standard solid state reaction technique. Pellet shaped samples prepared from each composition were sintered at 1573 K for 5 h. The X-ray diffraction analysis indicated the formation of a single-phase orthorhombic structure. The lattice parameters as well as densities increased but the average grain sizes decreased with the increase of La content. The dielectric measurements were carried out at room temperature as a function of frequency and composition. The experimental results revealed that dielectric constant (ɛ′) decreased but dielectric loss (tan δ) and ac electrical conductivity (σ ac ) increased as frequency increased. The composition dependence of ɛ′ and tan δ indicated that they decreased with the increase of La content. The σ ac was derived from the dielectric measurements and it is concluded that the conduction in the present samples is due to mixed polarons hopping.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Goodenough J.B., Rep. Prog. Phys., 67 (2004), 1915.

    Article  CAS  Google Scholar 

  2. Jones R.E., Mainar P.D., Olowolafe J.O., Campbell J.O., Mogab C.J., Appl. Phys. Lett., 60 (1992), 1022.

    Article  CAS  Google Scholar 

  3. Setter N. et al., J. Appl. Phys., 100 (2006), 051606.

    Article  Google Scholar 

  4. Carreaud J., Bogicevic C., Dkhil B., Kiat J.M., Appl. Phys. Lett., 92 (2008), 242902.

    Article  Google Scholar 

  5. Kim B.G., Cho S.M., Kim T.Y., Jang H.M., Phys. Rev. Lett., 86 (2001), 3404.

    Article  CAS  Google Scholar 

  6. Guo Y., Kakimoto K., Ohsato H., Solid State Commun., 129 (2004), 279.

    Article  CAS  Google Scholar 

  7. Shi J., Yang W., J. Alloys Compd., 472 (2009), 267.

    Article  CAS  Google Scholar 

  8. Ramirez A.P. et al., Solid State Commun., 115 (2000), 217.

    Article  CAS  Google Scholar 

  9. Wu J., Nan C. W., Lin Y. H., Deng Y., Phys. Rev. Lett., 89 (2002), 217601.

    Article  Google Scholar 

  10. Fu M.S., Liu X.Q., Chen X.M., J. Eur. Cer. Soc., 28 (2008), 585.

    Article  CAS  Google Scholar 

  11. Yoon K.H., Kim W.S., Kim E.S., Mater. Sci. Eng. B, 99 (2003), 112.

    Article  Google Scholar 

  12. Chung C.Y., Chang Y.H., Chang Y.S., Chen G.J., J. Alloys Compd., 385 (2004), 298.

    Article  CAS  Google Scholar 

  13. Mendelson M.I., J. Am. Ceram. Soc., 52(8) (1969), 443.

    Article  CAS  Google Scholar 

  14. Cavalcante L.S. et al., Chem. Eng. J., 143 (2008), 299.

    Article  CAS  Google Scholar 

  15. Shannon R.D., Acta Crystallogr. A, 32 (1976), 751.

    Article  Google Scholar 

  16. Vegard L., Z. Phys., 5 (1921), 17.

    Article  CAS  Google Scholar 

  17. Haque M.M., Huq M., Hakim M.A., Mater. Chem. Phys., 112 (2008), 580.

    Article  CAS  Google Scholar 

  18. Upadhyay S., Parkash O., Kumar D., Mater. Lett., 49 (2001), 251.

    Article  CAS  Google Scholar 

  19. Desu S.B., Payne D.A., J. Am. Ceram. Soc., 73 (1990), 3398.

    Article  CAS  Google Scholar 

  20. Buscaglia M.T., Buscaglia V., Viviani M., Nanni P., Hanuskova M., J. Eur. Ceram. Soc., 20, (2000), 1997.

    Article  CAS  Google Scholar 

  21. Parkash O., Kumar D., Dwivedi R.K., Srivastava K.K., Singh P., Singh S., J. Mater. Sci., 42 (2007), 5490.

    Article  CAS  Google Scholar 

  22. Kroger F.A., Vink H., J. Solid State Phys., 3, (1956), 307.

    Article  CAS  Google Scholar 

  23. Kanamadi C.M., Pujari L.B., Chougule B.K., J. Magn. Magn. Mater., 295 (2005), 139.

    Article  CAS  Google Scholar 

  24. Maxwell J.C., Electricity and Magnetism, Oxford University Press, London, 1973.

    Google Scholar 

  25. Wagner K.W., Ann. Phys. (Leipzig), 40 (1913), 817.

    Google Scholar 

  26. Shah D.D., Mehta P.K., Desai M.S., Panchal C.J., J. Alloys Compd., 509 (2011), 1800.

    Article  CAS  Google Scholar 

  27. Chakrabarti A., Bera J., J. Alloys Compd., 505 (2010), 668.

    Article  CAS  Google Scholar 

  28. Huang C.L., Lin S.H., Liu S.S., Chen Y.B., J. Alloys Compd., 489 (2010), 541.

    Article  CAS  Google Scholar 

  29. Patil D.R., Chougule B.K., J. Alloys Compd., 470 (2009), 531.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics, Primeasia University, Banani, Dhaka, 1213, Bangladesh

    M. R. Shah

  2. Department of Physics, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh

    A. K. M. Akther Hossain

Authors
  1. M. R. Shah
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. K. M. Akther Hossain
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to M. R. Shah.

About this article

Cite this article

Shah, M.R., Akther Hossain, A.K.M. Structural and dielectric properties of La substituted polycrystalline Ca(Ti0.5Fe0.5)O3 . Mater Sci-Pol 31, 80–87 (2013). https://doi.org/10.2478/s13536-012-0069-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.2478/s13536-012-0069-1

Keywords

Search

Navigation