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Local canted spin behaviour in Co1.4−x Zn x Ge0.4Fe1.2O4 spinels: A macroscopic, mesoscopic and microscopic study

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Abstract

DC magnetization, neutron depolarization and neutron diffraction (with both polarized and unpolarized neutrons) measurements have been reported for the Co1.1−x Zn x Ge0.1Fe1.2O1 spinels with x=0.5, 0.6 and 0.7. Neutron depolarization and neutron diffraction measurements confirm the presence of a long range ferrimagnetic ordering of the local canted spins in these ferrite samples. The observed features of low field magnetization have been explained under the framework of thermally activated domain wall movement of ferrimagnetic arrangement of local canted spins. An important role of magnetic anisotropy (due to the presence of Co2+ ions) in establishing the magnetic ordering and domain kinetics in these ferrites has been observed.

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References

  1. J L Dormann and M Nogues, J. Phys. Condens. Matter 2, 1223 (1990)

    Article  ADS  Google Scholar 

  2. J B Villain, Z. Phys. B33, 31 (1979).

    Google Scholar 

  3. J B Goodenough, Magnetism and the chemical bonds (New York, Wiley, 1963).

    Google Scholar 

  4. S M Yusuf, V C Sahni and L Madhav Rao, J. Phys. Condens. Matter 7, 873 (1995)

    Article  ADS  Google Scholar 

  5. J Nogues, T Puig, R B Jotania, R V Upadhyay, R G Kulkarni and K V Rao, J. Magn. Magn. Mater. 99, 275 (1991)

    Article  ADS  Google Scholar 

  6. R B Jotania, R V Upadhyay and R G Kulkarni, IEEE Trans. Magn. 28, 1889 (1992)

    Article  Google Scholar 

  7. L Madhav Rao, S M Yusuf and R S Kothare, Indian J. Pure Appl. Phys. 30, 276 (1992)

    Google Scholar 

  8. S M Yusuf and L Madhav Rao, Pramana — J. Phys. 47, 171 (1996)

    ADS  Google Scholar 

  9. S M Yusuf and L Madhav Rao, J. Phys. Condens. Matter 7, 5891 (1995)

    Article  ADS  Google Scholar 

  10. L Madhav Rao, Bull. Mater Sci. 7, 303 (1995)

    Google Scholar 

  11. H M Rietveld, J. Appl. Crystallogr. 2, 65 (1969)

    Article  Google Scholar 

  12. F Scholl and K Binder, Z. Phys. B39, 239 (1980)

    Article  Google Scholar 

  13. C G Shull and R Nathans, Phys. Rev. Lett. 19, 384 (1969)

    Article  ADS  Google Scholar 

  14. C Y Huang, J. Magn. Magn. Mater. 51, 1 (1985)

    Article  ADS  Google Scholar 

  15. J L Soubeyroux, Fiorani and E Agostinelli, J. Magn. Magn. Mater. 54–57, 83 (1986)

    Article  Google Scholar 

  16. N S Satya Murthy, M G Netera, S I Youssef, R J Begum and C M Srivastava, Phys. Rev. 181, 969 (1969)

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Physics, Saurashtra University, 360 005, Rajkot, India

    MV Subbarao & RG Kulkarni

  2. Condensed Matter Physics Division, Bhabha Atomic Research Centre, 400 085, Trombay, Mumbai, India

    SM Yusuf

  3. Inter University Consortium for DAE Facilities, Bhabha Atomic Research Centre, 400 085, Mumbai, India

    L Madhav Rao

Authors
  1. MV Subbarao
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  2. SM Yusuf
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  3. RG Kulkarni
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  4. L Madhav Rao
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Subbarao, M., Yusuf, S., Kulkarni, R. et al. Local canted spin behaviour in Co1.4−x Zn x Ge0.4Fe1.2O4 spinels: A macroscopic, mesoscopic and microscopic study. Pramana - J Phys 53, 341–351 (1999). https://doi.org/10.1007/s12043-999-0133-5

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  • DOI: https://doi.org/10.1007/s12043-999-0133-5

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