Advertisement

Journal of Materials Science

, Volume 26, Issue 5, pp 1223–1227 | Cite as

Non-linear magnetic susceptibility of some vanadate glasses

  • K. K. Som
  • B. K. Chaudhuri
Papers

Abstract

The first measurements of the anomalous variation of d.c. magnetic susceptibility of the (50 − x) P2O5-xM-50V2O5 (M = Bi2O3 and Sb2O3, and x=0 to 40 mol% M) oxide glasses around 20 to 30 mol% M are reported here. Similar anomalous behaviour was also observed in the electrical and other physical properties of the glasses (reported in the previous paper). Like electrical and dielectric properties, this anomaly in the magnetic properties was also found to be mostly associated with the anomalous variation of the V4+/V5+ ratio (around 20 to 30 mol% M) with the concentration of M. From the temperature (80 to 300 K)-dependent magnetic susceptibility data the V4+ ion concentrations have also been calculated, which agree quite well with those obtained from chemical analysis, and the small discrepancy is attributed to the presence of V3+ and/or V2+ ions in the glass.

Keywords

Oxide Polymer Chemical Analysis Vanadate Magnetic Property 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. Hirashima, Y. Watanabe and T. Yoshida, J. Non-Cryst. Solids 95/96 (1987) 825.CrossRefGoogle Scholar
  2. 2.
    H. Fritzsche, “Amorphous and Liquid Semiconductors”, edited by J. Tauc (Plenum Press, London, 1974) p. 313.CrossRefGoogle Scholar
  3. 3.
    B. K. Chaudhuri and A. Ghosh, in Proceedings of the National Symposium on Semiconducting Devices, Calcutta, India (1986) p. 328.Google Scholar
  4. 4.
    S. Nakamura and N. Ichinose, J. Non Cryst. Solids 95/96 (1987) 849.CrossRefGoogle Scholar
  5. 5.
    I. G. Austin and N. F. Mott, Adv. Phys. 18 (1969) 41.CrossRefGoogle Scholar
  6. 6.
    B. K. Chaudhuri, K. Chaudhuri and K. K. Som, J. Phys. Chem. Solids 50 (1989) 1137.CrossRefGoogle Scholar
  7. 7.
    N. F. Mott, J. Non Cryst. Solids 1 (1968) 1.CrossRefGoogle Scholar
  8. 8.
    L. Murawaski, C. H. Chung and J. D. Mackenzie, ibid. 32 (1979) 91.CrossRefGoogle Scholar
  9. 9.
    A. Ghosh and B. K. Chaudhuri, ibid, 83 (1986) 151.CrossRefGoogle Scholar
  10. 10.
    M. Sayer and A. Mansingh, Phys. Rev. B6 (1972) 4629.CrossRefGoogle Scholar
  11. 11.
    A. P. Schmid, J. Appl. Phys. 39 (1968) 3140.CrossRefGoogle Scholar
  12. 12.
    J. D. Mackenzie, “Modern Aspects of Vitreous State” (Butterworths, London, 1964).Google Scholar
  13. 13.
    F. R. Landsberger and P. J. Bray, J. Chem. Phys. 53 (1970) 2757.CrossRefGoogle Scholar
  14. 14.
    J. Tauc, F. J. D. Salvo, G. E. Peterson and D. L. Wood, “Amorphous Magnetism”, in “Proceedings of the International Symposium”, Detroit, Michigan, 1972, edited by H. O. Hooper and A. M. De Graff (Plenum Press, New York, 1973) p. 119.Google Scholar
  15. 15.
    B. K. Chakraverty and M. J. Seinko, Phys. Rev. B17 (1978) 3681.Google Scholar
  16. 16.
    E. J. Friebele, L. K. Wilson and D. L. Kinser, J Amer. Ceram. Soc. 55 (1972) 164.CrossRefGoogle Scholar
  17. 17.
    G. F. Lynch, M. Sayer, S. L. Segel and G. Rosenblat, J. Appl. Phys. 42 (1971) 2587.CrossRefGoogle Scholar
  18. 18.
    V. M. Nagiev, Sov. Phys. Solid State 7 (1966) 2205.Google Scholar
  19. 19.
    A. Nicula, E. Culea and I. Lupsa, J. Non-Cryst. Solids 79 (1986) 325.CrossRefGoogle Scholar
  20. 20.
    K. K. Som and B. K. Chaudhuri, unpublished, 1988.Google Scholar
  21. 21.
    R. A. Verhelst, R. W. Kline, A. M. De Graff and H. O. Hooper, Phys. Rev. B11 (1975) 4427.CrossRefGoogle Scholar
  22. 22.
    J. P. Sanchez, J. M. Friedt, R. Horne and A. J. Duyneveldt, J. Phys. C17 (1984) 127.Google Scholar
  23. 23.
    J. P. Renard, J. P. Piranday and F. Varret, Solid State Commun. 35 (1980) 41.CrossRefGoogle Scholar
  24. 24.
    K. K. Som and B. K. Chaudhuri, J. Mater. Sci. 26 (1991) 1228.CrossRefGoogle Scholar
  25. 25.
    B. K. Chaudhuri and D. Ghosh, Phys. Status Solidi 23a (1974) 649.CrossRefGoogle Scholar
  26. 26.
    P. W. Selwood, “Magnetochemistry” (Interscience, New York, London, 1956).Google Scholar
  27. 27.
    A. W. Simpson, Phys. Status Solidi 40 (1970) 207.CrossRefGoogle Scholar
  28. 28.
    A. Ghosh and B. K. Chaudhuri, Ind. J. Phys. 58A (1984) 62.Google Scholar
  29. 29.
    B. V. J. Rao, J. Amer. Ceram. Soc. 49 (1966) 605.CrossRefGoogle Scholar
  30. 30.
    Idem., ibid. 48 (1965) 311.CrossRefGoogle Scholar

Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • K. K. Som
    • 1
  • B. K. Chaudhuri
    • 1
  1. 1.Solid State Physics DepartmentIndian Association for the Cultivation of ScienceCalcuttaIndia

Personalised recommendations