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Journal of Materials Science

, Volume 42, Issue 19, pp 8189–8192 | Cite as

Low temperature processing of Mn–Zn nanoferrites

  • P. MathurEmail author
  • A. Thakur
  • M. Singh
Article

Abstract

Mn0.4Zn0.6Fe2O4 ferrite synthesized by coprecipitation method is investigated in the present work. D.C. resistivity is studied as a function of temperature and values upto 102 times greater than those for samples prepared by the conventional ceramic method are observed. It is found that resistivity decreases with increase in temperature. The initial permeability values are high as compared to those prepared by soft chemical route. Initial permeability is found to increase with increase in temperature. At a certain temperature, called the Curie temperature, it attained a maximum value, after which the initial permeability is found to decrease. Even at nanolevel, appreciable value of initial permeability is obtained. The particle size is calculated using Scherrer equation for Lorentzian peak, which comes out between 9 nm and 19 nm. Possible mechanisms contributing to these processes have been discussed.

Keywords

Ferrite Curie Temperature Zinc Chloride Coprecipitation Method Initial Permeability 

References

  1. 1.
    Singh M, Sud SP (2000) Mod Phys Lett 14:531CrossRefGoogle Scholar
  2. 2.
    Singh M, Chauhan BS (2000) Int Mod Phys B 14:1593Google Scholar
  3. 3.
    Rosales MI, Amano E, Cuautle MP, Valenzuela R (1997) Mater Sci Eng B 49:221CrossRefGoogle Scholar
  4. 4.
    Thakur A, Singh M (2003) Ceramic Int 29:505CrossRefGoogle Scholar
  5. 5.
    Thakur A, Mathur P, Singh M (2007) J Phys Chem Solids 68:378CrossRefGoogle Scholar
  6. 6.
    Verma A, Goel TC, Mendiratta RG, Alam MI (1999) Mater Sci Eng B 60:156CrossRefGoogle Scholar
  7. 7.
    Verma A, Goel TC, Mendiratta RG (2000) Mater Sci Technol 16:712CrossRefGoogle Scholar
  8. 8.
    Cullity BD (1978) Elements of X-ray diffraction. Addison Wesley Reading, MAGoogle Scholar
  9. 9.
    Caizer C, Stefanescu M (2003) Physica B 327:129CrossRefGoogle Scholar
  10. 10.
    Singh M (1996) Ph.D. thesis, Himachal Pradesh University, Shimla, IndiaGoogle Scholar
  11. 11.
    Rado GT, Wright RW, Emerson WH (1960) Phys Rev 80:273CrossRefGoogle Scholar
  12. 12.
    Rado GT, Wright RW, Emerson WH, Terris A (1952) Phys Rev 88:909CrossRefGoogle Scholar
  13. 13.
    Rado GT (1953) Rev Mod Phys 25:81CrossRefGoogle Scholar
  14. 14.
    Snoek JL (1947) New developments in ferromagnetic materials. Elsevier Publishing, New YorkGoogle Scholar
  15. 15.
    Gieraltowski J, Globus A (1977) IEEE Trans Magn 13:1359CrossRefGoogle Scholar
  16. 16.
    Globus A (1977) Proc J Phys Colloq 38:C1Google Scholar
  17. 17.
    Soohoo RF (1960) Theory and application of ferrites. Prentice-Hall, USAGoogle Scholar
  18. 18.
    Yue Z, Zhou J, Wang X, Gui Z, Li L (2001) J Mater Sci Lett 20:1327CrossRefGoogle Scholar
  19. 19.
    Iwauchie K (1971) Jap J Appl Phys 10:1520CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of PhysicsHimachal Pradesh UniversityShimlaIndia

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