Journal of Materials Science Letters

, Volume 7, Issue 6, pp 639–640 | Cite as

Effect of magnetic order on the conductivity in 639-1639-1639-1ferrites

  • M. A. Ahmed
  • M. K. El Nimr
  • A. Tawfik
  • A. M. Aboelata
Article

Keywords

Polymer Magnetic Order 

References

  1. 1.
    E. J. W. VERWEY, P. W. HAAIJMAN, F. C. ROMEYN and G. W. OCSTENOUT,Philips Res. Rep. 5 (1950) 173.Google Scholar
  2. 2.
    I. G. AUSTIN and N. F. MOTT,Adv. Phys. 18 (1969) 41.Google Scholar
  3. 3.
    F. G. BROCKMAN and K. E. MATTESON,J. Am. Ceram. Soc. 53 (1970) 517.Google Scholar
  4. 4.
    A. A. GHANI and M. A. AHMED,J. Physique 38(4) (1977) 237.Google Scholar
  5. 5.
    Idem, Proceedings of the Mathematical and Physics Society of Egypt12 (1976) 93.Google Scholar
  6. 6.
    G. H. JONKER,J. Phys. Chem. Solids 9 (1959) 165.Google Scholar
  7. 7.
    R. PARKER, D. ELEWELL and B. A. GRIFFITHS,Br. J. Appl. Phys. 17 (1966) 1269.Google Scholar
  8. 8.
    J. SMIT and H. P. WIJN, “Ferrites” (Cleaver-Hume, London, 1959) p. 229.Google Scholar
  9. 9.
    O. S. JOSYULU and SOBHANADRI,Phys. Status Solidi (a) 59 (1980) 323.Google Scholar
  10. 10.
    B. S. SATYA MURTHY, A. G. NOTERA and S. I. YOSSEF,Phys. Rev. 181 (1969) 696.Google Scholar
  11. 11.
    G. A. PETITT,Solid State Commun. 13 (1973) 1611.Google Scholar
  12. 12.
    S. A. MAZEN and M. A. AHMED,Egypt J. Phys. 14(2) (1983) 203.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1988

Authors and Affiliations

  • M. A. Ahmed
    • 1
  • M. K. El Nimr
    • 1
  • A. Tawfik
    • 1
  • A. M. Aboelata
    • 1
  1. 1.Department of PhysicsFaculty of Science, Tanta UniversityTantaEgypt

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