Skip to main content
SpringerLink
Log in

On the intergranular coupling in soft nanocrystalline materials

  • Articles
  • Published:
Journal of Materials Research Aims and scope Submit manuscript

Abstract

The magnetic softness of nanocrystalline materials prepared from amorphous precursors is attributed to the average of the local magnetocrystalline anisotropy of the individual crystallites. In the present paper we have studied the effective magnetic anisotropy of Fe-based nanocrystalline samples with different microstructures. These microstructures were produced by using different heating rates when crystallizing the precursor material by means of continuous heating treatments. From the results of our study of the magnetic properties of the samples, carried out from the measurement of the bias field dependence of the transverse susceptibility, it was possible to discern the occurrence of intergranular coupling and to evaluate the typical dimensions of the coupled units. Since these dimensions were larger than the characteristic length of the microstructure, we suggest that the enhancement of the soft properties is linked to the decrease of the microstructure-magnetization interactions originating in large units of coupled magnetic moments.

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. Y. Yoshizawa, S. Oguma, and K. Yamauchi, J. Appl. Phys. 64, 6044 (1988).

    Article  CAS  Google Scholar 

  2. Y. Yoshizawa and K. Yamauchi, J. Jpn. Inst. Metals 63, 241 (1989).

    Article  Google Scholar 

  3. G. Herzer, IEEE Trans. Magn. Mag-26, 1397 (1990).

    Article  Google Scholar 

  4. G. Herzer, Mater. Sci. Eng. A 133, 1 (1991).

    Article  Google Scholar 

  5. J. M. González, M. Vázquez, and J. L. Vicent, J. Magn. Magn. Mater. 54–57, 261 (1986).

    Article  Google Scholar 

  6. J. M. González, M. Liniers, G. Rivero, E. Ascasibar, and J. L. Vicent, J. Magn. Magn. Mater. 72, 187 (1988).

    Article  Google Scholar 

  7. H. Hoffmann, IEEE Trans. Magn. Mag-4, 32 (1968).

    Article  Google Scholar 

  8. H. Hoffmann, IEEE Trans. Magn. Mag-15, 1215 (1979).

    Article  Google Scholar 

  9. J. M. González, F. Cebollada, and A. Hernando, J. Appl. Phys. 73, 6943 (1993).

    Article  Google Scholar 

  10. V. E. Martín, J. Bernardi, J. Fidler, F. Cebollada, and J. M. González, J. Alloys and Compounds 101, 127 (1993).

    Article  Google Scholar 

  11. H. Hoffmann and T. Fujii, J. Magn. Magn. Mater. 128, 395 (1993).

    Article  CAS  Google Scholar 

  12. M. S. Cohen, in Handbook of Thin Film Technology, edited by L. I. Massel and R. Glang (McGraw-Hill Book Company, New York, 1970), pp. 17–64.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Departamento de Propiedades Ópticas, Magnéticas y de Transporte, Instituto de Ciencia de Materiales, CSIC, Serrano 144, 28006, Madrid, Spain

    J. M. González

  2. Departamento de Física de Materiales, Facultad de Químicas, 20080, San Sebastián, Spain

    N. Murillo & J. González

  3. Departamento de Física Aplicada I, Escuela Universitaria de Ingeniería Técnica Industrial, 20010, San Sebastián, Spain

    J. M. Blanco

  4. Departamento de Materiales, CEIT, San Sebastián, Spain

    J. Echeberría

Authors
  1. J. M. González
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. Murillo
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. González
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. J. M. Blanco
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. J. Echeberría
    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

González, J.M., Murillo, N., González, J. et al. On the intergranular coupling in soft nanocrystalline materials. Journal of Materials Research 11, 512–517 (1996). https://doi.org/10.1557/JMR.1996.0061

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/JMR.1996.0061

Search

Navigation