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. Bhoraskar

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)199-209
Number of pages11
JournalHyperfine Interactions
Volume160
Issue number1-4
DOIs
StatePublished - Jan 1 2005

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Bhave, T. M., Balasubramanian, C., Nagar, H., Kulkarni, S., Pasricha, R., Bakare, P. P., Date, S. K., & Bhoraskar, S. V. (2005). Oriented growth of nanocrystalline gamma ferric oxide in electrophoretically deposited films. Hyperfine Interactions, 160(1-4), 199-209. https://doi.org/10.1007/s10751-005-9165-5