Skip to main content
SpringerLink
Log in

NMR of59Co in HoCo2 substituted by Al and Cu

  • Structures, Magnetic Phases
  • Published:
Hyperfine Interactions Aims and scope Submit manuscript

Abstract

59Co NMR and magnetic studies were performed on Ho(Co1−x Cu x )2 and Ho(Co1−x Al x )2 compounds.T C increases considerably with increasingx (the effect is much more pronounced in the case of the Al substitution) and the originally first order transition (HoCo2) changes to the second order transition. The sharp spin-reorientation transition found in HoCo2 at ⋟15 K considerably broadens (over an interval of ⋟30K). Also the NMR spectra become much broader and this fact together with the observed increasing magnetic hardness (being presumably due to a random anisotropy effects) point to pronounced local surrounding effects due to Cu or Al atoms appearing in the neighbourhood of Co atoms.

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. K. Schwarz and P. Mohn, J. Phys. F14 (1984) L129.

    Article  ADS  Google Scholar 

  2. J. Inoue and M. Shimizu, J. Phys. F12 (1982) 1811.

    Article  ADS  Google Scholar 

  3. T.D. Hien, N.H. Duc and J.J.M. Franse, J. Magn. & Magn. Mat. 54–57 (1986) 471.

    Article  Google Scholar 

  4. H. Oesterreicher, J. Appl. Phys. 44 (1973) 2350.

    Article  Google Scholar 

  5. V.V. Alexandryan, A.S. Lagutin, R.Z. Levitin, A.S. Markosyan and V.V. Snegirev, Sov. Phys. JEPT 62 (1985) 153.

    Google Scholar 

  6. K. Ishiama and K. Endo, J. Phys. Soc. Japan 55 (1986) 2535.

    Article  Google Scholar 

  7. D. Gignoux, F. Givord and R. Lemaire, Phys. Rev. B12 (1975) 3878.

    Article  ADS  Google Scholar 

  8. A.P. Guimaraes, K.M.B. Alves, N. Alves and E. Gratz, J. Appl. Phys. 61 (1987) 3985.

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Low-Temperature Physics, Charles University, Ke Karlovu 5, 121 16, Prague 2, Czechoslovakia

    J. Englich & H. Štěpánková

  2. Institut für Festkörperforschung KFA, D-5170, Jülich, FRG

    V. Sechovský & H. Lütgemeier

Authors
  1. J. Englich
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. Štěpánková
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. Sechovský
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. Lütgemeier
    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

Englich, J., Štěpánková, H., Sechovský, V. et al. NMR of59Co in HoCo2 substituted by Al and Cu. Hyperfine Interact 50, 729–732 (1989). https://doi.org/10.1007/BF02407715

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02407715

Keywords

Search

Navigation