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The Basis of Nanomagnetism

  • Alberto P. GuimarãesEmail author
Chapter
Part of the NanoScience and Technology book series (NANO)

Summary

What is the origin of the observed differences in magnetic behavior between a sample with nanometric dimensions and a macroscopic sample of the same material? These differences are shown to arise from broken translation symmetry in nanometric samples, from the higher proportion of atoms on the surface, or interface, from the fact that the sizes of nanoscopic objects are comparable to some fundamental or characteristic lengths of the constituent material, and other effects. The exchange length and the magnetic domain wall width are some of the characteristic lengths that are more relevant to the magnetic properties. The shape of the density of electronic states curve is also dependent on the dimensionality of the samples.

Keywords

Critical Exponent Surface Atom Quantum Wire Anisotropy Energy State Curve 
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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Further Reading

  1. S.D. Bader , Rev. Mod. Phys. 78, 1–15 (2006)CrossRefADSGoogle Scholar
  2. X. Batlle, A. Labarta , J. Phys. D: Appl. Phys. 35, R15–R42 (2002)CrossRefADSGoogle Scholar
  3. J.A.C. Bland, B. Heinrich , (eds.), Ultrathin Magnetic Structures, vols I–IV (Springer, Berlin, 2005)Google Scholar
  4. J.F. Bobo , L. Gabillet, M. Bibes, J. Phys. Condens. Matter. 16, S471–S496 (2004)CrossRefADSGoogle Scholar
  5. C. Chappert, A. Barthelémy , in Nanomagnetism and Spin Electronics, ed. by C. Dupas, P. Houdy, M. Lahmany. Nanoscience (Springer, Berlin, 2007), pp. 503–582Google Scholar
  6. C.L. Dennis , R.P. Borges, L.D. Buda, U. Ebels, J.F. Gregg, M. Hehn, E. Jouguelet, K. Ounadjela, I. Petej, I.L. Prejbeanu, M.J. Thornton, J. Phys. Condens. Matter 14, R1175–R1262 (2002)CrossRefADSGoogle Scholar
  7. A. Enders, P. Gambardella, K. Kern , in Magnetism of Low-Dimensional Metallic Structures, ed. by H. Kronmüller, S. Parkin. Handbook of Magnetism and Advanced Magnetic Materials, vol 1 (Wiley, Chichester, 2007), pp. 577–639Google Scholar
  8. M.R. Fitzsimmons , S.D. Bader, J.A. Borchers, G.P. Felcher, J.K. Furdyna, A. Hoffmann, J.B. Kortright, I.K. Schuller, T.C. Schulthess, S.K. Sinha, M.F. Toney, D. Weller, S. Wolf, J. Magn. Magn. Mat. 271, 103–146 (2004)CrossRefADSGoogle Scholar
  9. O. Fruchart, A. Thiaville , Compt. Rend. Phys. 6, 921–933 (2005)CrossRefADSGoogle Scholar
  10. C.P. Poole Jr., F.J. Owens , Introduction to Nanotechnology (Wiley, Hoboken, 2003)Google Scholar
  11. R. Skomski , J. Phys. Condens. Matter. 15, R841–R896 (2003)CrossRefGoogle Scholar
  12. C.A.F. Vaz , J.A.C. Bland, G. Lauhoff, Rep. Prog. Phys. 71, 056501–056578 (2008)CrossRefADSGoogle Scholar

References

  1. 1.
    C. Alexiou, R. Jurgons, in Magnetic Drug Targeting, ed. by W. Andrä, H. Nowak. Magnetism in Medicine: A Handbook, 2nd edn. (Wiley, Weinheim, 2007), pp. 596–605Google Scholar
  2. 2.
    M. Le Bellac, Quantum and Statistical Field Theory (Oxford University Press, Oxford, 1991)Google Scholar
  3. 3.
    J.A.C. Bland, B. Heinrich, Ultrathin Magnetic Structures (Springer, Berlin, 2005)Google Scholar
  4. 4.
    V.E. Borisenko, S. Ossicini, What is What in the Nanoworld (Wiley, Weinheim, 2004)CrossRefGoogle Scholar
  5. 5.
    K.H.J. Buschow (ed.), Concise Encyclopedia of Magnetic and Superconducting Materials, 2nd edn. (Elsevier, Amsterdam, 2005)Google Scholar
  6. 6.
    K. Chen, A.M. Ferrenberg, D.P. Landau, Phys. Rev. B 48, 3249–3256 (1993)CrossRefADSGoogle Scholar
  7. 7.
    M.E. Evans, F. Heller, Environmental Magnetism (Academic Press, San Diego, 2003)Google Scholar
  8. 8.
    G. Fleissner, B. Stahl, P. Thalau, G. Falkenberg, G. Fleissner, Naturwissenschaften 94, 631–642 (2007)CrossRefADSGoogle Scholar
  9. 9.
    P.P. Freitas, H. Ferreira, S. Cardoso, S. van Dijken, J. Gregg, in Nanostructures for Spin Electronics, ed. by D. Sellmyer, R. Skomski. Advanced Magnetic Nanostructures (Springer, New York, 2006), pp. 403–460Google Scholar
  10. 10.
    R.F. Freitas, W.W. Wilcke, IBM J. Res. Dev. 52, 439–447 (2008)CrossRefGoogle Scholar
  11. 11.
    O. Fruchart, A. Thiaville, Compt. Rend. Phys. 6, 921–933 (2005)CrossRefADSGoogle Scholar
  12. 12.
    R. Wu, A.J. Freeman, Phys. Rev. Lett. 69, 2867–2870 (1992)CrossRefADSGoogle Scholar
  13. 13.
    L. He, C. Chen, N. Wang, W. Zhou, L. Guo, J. Appl. Phys. 102, 103911–103914 (2007)Google Scholar
  14. 14.
    R. Hergt, W. Andrä, in Magnetic Hyperthermia and Thermoablation, ed. by W. Andrä, H. Nowak. Magnetism in Medicine: A Handbook, 2nd edn. (Wiley, Weinheim, 2007), pp. 550–570Google Scholar
  15. 15.
    M. Hosokawa, K. Nogi, M. Naito, T. Yokoyama, Nanoparticle Technology Handbook (Elsevier, Amsterdam, 2007)Google Scholar
  16. 16.
    F. Huang, M.T. Kief, G.J. Mankey, R.F. Willis, Phys. Rev. B 49, 3962–3971 (1994)CrossRefADSGoogle Scholar
  17. 17.
    J. Jorzick, C. Kramer, S.O. Demokritov, B. Hillebrands, B. Bartenlian, C. Chappert, D. Decanini, F. Rousseaux, E. Cambril, E. Sondergard, M. Bailleul, C. Fermon, A.N. Slavin, J. Appl. Phys. 89, 7091–7095 (2001)Google Scholar
  18. 18.
    Y. Li, K. Baberschke, Phys. Rev. Lett. 68, 1208–1211 (1992)CrossRefADSGoogle Scholar
  19. 19.
    I. Mertig, in Thin Film Magnetism: Band Calculations, ed. by K.H.J. Buschow. Concise Encyclopedia of Magnetic and Superconducting Materials, 2nd edn. (Elsevier, Amsterdam, 2005)Google Scholar
  20. 20.
    S. Odenbach, in Ferrofluids, ed. by K.H.J. Buschow. Handbook of Magnetic Materials, vol 16 (Elsevier, Amsterdam, 2006), pp. 127–208Google Scholar
  21. 21.
    S. Ohnishi, A.J. Freeman, M. Weinert, Phys. Rev. B 28, 6741–6748 (1983)CrossRefADSGoogle Scholar
  22. 22.
    M.J. Prandolini, Rep. Prog. Phys. 69, 1235–1324 (2006)CrossRefADSGoogle Scholar
  23. 23.
    S.N. Song, J. Ketterson, in Ultrathin Films and Superlattices, ed. by R.W. Cahn, P. Haasen, E.J. Kramer. Electronic and Magnetic Properties of Metals and Ceramics, vol 3A (Wiley, New York, 1991)Google Scholar
  24. 24.
    C.A.F. Vaz, J.A.C. Bland, G. Lauhoff, Rep. Prog. Phys. 71, 056501–056578 (2008)CrossRefADSGoogle Scholar
  25. 25.
    D. Weller, T. McDaniel, in Media for Extremely High Density Recording, ed. by D. Sellmyer, R. Skomski. Advanced Magnetic Nanostructures (Springer, New York, 2006), pp. 295–324Google Scholar
  26. 26.
    R. Wiltschko, W. Wiltschko, Magnetic Orientation in Animals (Springer, Berlin, 1995)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Centro Brasileiro de Pesquisas Físicas (CBPF)Rio de Janeiro - RJBrasil/Brazil

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