Skip to main content
SpringerLink
Log in

Superferromagnetic nanostructures

  • Invited Papers
  • Published:
Hyperfine Interactions Aims and scope Submit manuscript

Abstract

Interactions between magnetic nanoparticles can lead to superferromagnetic ordering, i.e. ordering of their magnetic moments at low temperatures. The use of a simple mean field theory, describing the temperature dependence of the order parameter is discussed. This model is found to give excellent fits to experimental results. In systems of particles with pure dipole interactions, the degree of ordering depends critically on the geometrical configuration of the particles. The application of superferromagnetic nanostructures for magnetic refrigeration is also discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. L. Néel. Ann. Geophys. 5(1949)99.

    Google Scholar 

  2. W. Kündig, H. Bömmel, G. Constabaris and R.H. Lindquist, Phys. Rev. 142(1966)327.

    Google Scholar 

  3. S. Mørup, J.A. Dumesic and H. Topsøe, in:Applications of Mössbauer Spectroscopy, Vol. 2, ed. R.L. Cohen (Academic Press, New York, 1980) p. 1.

    Google Scholar 

  4. J.L. Dormann, Rev. Phys. Appl. 16(1981)275.

    Google Scholar 

  5. S. Mørup, H. Topsøe and B.S. Clausen, Phys. Scripta 25(1982)713.

    Google Scholar 

  6. A.H. Morrish and K. Haneda, J. Magn. Magn. Mater. 35(1983)105.

    Google Scholar 

  7. S. Mørup, in:Mössbauer Spectroscopy Applied to Inorganic Chemistry, Vol. 2, ed. G.J. Long (Plenum Press, New York, 1987) p. 89.

    Google Scholar 

  8. J.L. Dormann and D. Fiorani (eds.),Magnetic Properties of Fine Particles (North-Holland, Amsterdam, 1992).

    Google Scholar 

  9. P.V. Hendriksen, F. Bødker, S. Linderoth and S. Mørup, J. Phys.: Condens. Matter (in press).

  10. S. Mørup, J. Magn. Magn. Mater. 37(1983)39.

    Google Scholar 

  11. S. Mørup, P.H. Christensen and B.S. Clausen, J. Magn. Magn. Mater. 68(1987)160.

    Google Scholar 

  12. S. Mørup, M.B. Madsen, J. Franck, J. Villadsen and C.J.W. Koch, J. Magn. Magn. Mater. 40(1983)163.

    Google Scholar 

  13. S. Mørup, Hyp. Int. 60(1990)959.

    Google Scholar 

  14. S. Mørup and G. Christiansen, J. Appl. Phys. 73(1993)6955.

    Google Scholar 

  15. L.H. Bennett, R.D. McMichael, R.D. Shull and R.E. Watson, J. Magn. Magn. Mater. 104–107(1992)1094.

    Google Scholar 

  16. P.V. Hendriksen, C.A. Oxborrow, S. Linderoth, S. Mørup, M. Hanson, C. Johansson, F. Bødker, K. Davies, S.W. Charles and S. Wells, Nucl. Instr. Meth. B76(1993)138.

    Google Scholar 

  17. J. Jing, F. Zhao, X. Yang and U. Gonser, Hyp. Int. 54(1990)571.

    Google Scholar 

  18. M.A. Polikarpov, I.V. Trushnin and S.S. Yakimov, J. Magn. Magn. Mater. 116(1992)372.

    Google Scholar 

  19. C.J.W. Koch, M.B. Madsen, S. Mørup, G. Christiansen, L. Gerward and J. Villadsen, Clays and Clay Minerals 34(1986)17.

    Google Scholar 

  20. C.J.W. Koch, M.B. Madsen and S. Mørup, Hyp. Int. 28(1986)549.

    Google Scholar 

  21. M.B. Madsen, S. Mørup and C.J.W. Koch, Hyp. Int. 42(1988)1059.

    Google Scholar 

  22. S. Bocquet and S.J. Kennedy, J. Magn. Magn. Mater. 109(1992)260.

    Google Scholar 

  23. S. Bocquet, R.J. Pollard and J.D. Cashion, Phys. Rev. B46(1992) 11657.

    Google Scholar 

  24. C. Wivel and S. Mørup, J. Phys. E14(1981)605.

    Google Scholar 

  25. E. Tronc and D. Bonnin, J. de Phys. Lett. 46(1985)L-437.

    Google Scholar 

  26. C. Hunt, Q.A. Pankhurst and D.P.E. Dickson, these Proceedings, Hyp. Int.

  27. S. Mørup, Surf. Sci. 156(1985)888.

    Google Scholar 

  28. F. Hartmann-Boutron, A. Ait-Bahammau and C. Meyer, J. de Phys. 48(1987)435.

    Google Scholar 

  29. C. Meyer and F. Hartmann-Boutron, Hyp. Int. 61(1990)219.

    Google Scholar 

  30. S. Linderoth and S. Mørup, J. Appl. Phys. 67(1990)4496.

    Google Scholar 

  31. S. Mørup, S. Linderoth, J. Jacobsen and M. Holmblad, Hyp. Int. 69(1991)489.

    Google Scholar 

  32. S. Linderoth and S. Mørup, J. Phys.: Condens. Matter 4(1992)8627.

    Google Scholar 

  33. S. Mørup, G. Christiansen and N.C. Koon, J. Magn. Magn. Mater. 104–107(1992)1793.

    Google Scholar 

  34. N.C. Koon, B.T. Jonker, F.A. Volkening, J.J. Krebs and G.A. Prinz, Phys. Rev. Lett. 59(1987)2463.

    Google Scholar 

  35. F.A. Volkening, B.T. Jonker, J.J. Krebs, G.A. Prinz and N.C. Koon, J. de Phys. 49(1988)C8–1699.

    Google Scholar 

  36. F.A. Volkening, B.T. Jonker, J.J. Krebs, N.C. Koon and G.A. Prinz, J. Appl. Phys. 63(1988)3869.

    Google Scholar 

  37. J.J. Krebs, B.T. Jonker and G.A. Prinz, J. de Phys. 49(1988)C8–1707.

    Google Scholar 

  38. S. Mørup, IEEE Trans. Mag. MAG-23(1987)3518.

    Google Scholar 

  39. E. Tronc, J.-P. Jolivet and J. Livage, J. Chem. Res. (S) 5(1987)136.

    Google Scholar 

  40. E. Tronc and J.-P. Jolivet, J. de Phys. 49(1988)C8–1823.

    Google Scholar 

  41. P.V. Hendriksen, S. Mørup, G. Christiansen and K.W. Jacobsen, in:Science and Technology of Nanostructural Magnetic Materials, eds. G.C. Hadjipanayis and G.A. Prinz (Plenum Press, New York, 1991) p. 573.

    Google Scholar 

  42. P.V. Hendriksen, S. Mørup and G. Christiansen, J. Magn. Magn. Mater, (in press).

  43. R.D. Shull, L.D. Swartzendruber and L.H. Bennett,Proc. 6th Int. Cryocoolers Conference, eds. G. Green and M. Knox (David Taylor Research Center Publ., Annapolis, 1991) p. 231.

    Google Scholar 

  44. R.D. Shull, R.D. McMichael, L.J. Swartendruber and L.H. Bennett, in:Magnetic Properties of Fine Particles, eds. J.L. Dormann and D. Fiorani (North-Holland, Amsterdam, 1992) p. 161.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physics Department, Building 307, Technical University of Denmark, DK-2800, Lyngby, Denmark

    Steen Mørup

Authors
  1. Steen Mørup
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mørup, S. Superferromagnetic nanostructures. Hyperfine Interact 90, 171–185 (1994). https://doi.org/10.1007/BF02069126

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02069126

Keywords

Search

Navigation