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Hyperfine Interactions

, Volume 160, Issue 1–4, pp 199–209 | Cite as

Oriented Growth of Nanocrystalline Gamma Ferric Oxide in Electrophoretically Deposited Films

  • Tejashree M. Bhave
  • C. Balasubramanian
  • Harshada Nagar
  • Shailaja Kulkarni
  • Renu Pasricha
  • P. P. Bakare
  • S. K. Date
  • S. V. BhoraskarEmail author
Article

Abstract

Films of nanocrystalline γ-Fe2O3 were deposited on silicon substrates by using the technique of electrophoretic deposition. The precursor powder was nanocrystalline γ-Fe2O3, which was synthesized, using DC arc plasma in the oxygen ambient by vapour–vapour interaction in gas phase condensation; at a stabilized arc current of 40 A. This powder was characterized by X-ray diffraction, Transmission Electron Microscopy, Vibrating Sample Magnetometer and Mössbauer Spectroscopy. An increase in directional coercivity was observed in case of films deposited on silicon substrates, which is dramatically significant. Preferred orientation of almost similar sized nanocrystalline magnetic domains in deposited films is evident from the results of X-ray diffraction and Transmission Electron Microscopy results. The preferred alignment of the nanocrystallites seems to be responsible for the significant changes observed in magnetic properties of films.

Keywords

Silicon Substrate Vibrate Sample Magnetometer Transmission Electron Micrograph Precursor Powder Transmission Electron Microscopy Grid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Tejashree M. Bhave
    • 1
  • C. Balasubramanian
    • 1
  • Harshada Nagar
    • 1
  • Shailaja Kulkarni
    • 2
  • Renu Pasricha
    • 2
  • P. P. Bakare
    • 2
  • S. K. Date
    • 1
  • S. V. Bhoraskar
    • 1
    Email author
  1. 1.Center for Advanced Research in Material Science and Solid State Physics, Department of PhysicsUniversity of PunePuneIndia
  2. 2.National Chemical LaboratoryPuneIndia

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