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      https://www.ias.ac.in/article/fulltext/pram/053/02/0341-0351

    • Keywords

       

      Ferrites; local canted spins; magnetic anisotropy; domain wall pinning

    • Abstract

       

      DC magnetization, neutron depolarization and neutron diffraction (with both polarized and unpolarized neutrons) measurements have been reported for the Co1.1−xZnxGe0.1Fe1.2O1 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.

    • Author Affiliations

       

      MV Subbarao1 SM Yusuf2 RG Kulkarni1 L Madhav Rao3

      1. Department of Physics, Saurashtra University, Rajkot - 360 005, India
      2. Condensed Matter Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai - 400 085, India
      3. Inter University Consortium for DAE Facilities, Bhabha Atomic Research Centre, Mumbai - 400 085, India
    • Dates

       
  • Pramana – Journal of Physics | News

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