Hyperfine Interactions

, Volume 39, Issue 1, pp 51–66 | Cite as

57Fe,61Ni and91Zr hyperfine field distributions in magnetic Tm-Zr amorphous alloys

  • H. Lerchner
  • M. Rosenberg
Article

Abstract

Pulsed NMR measurements were performed on [Tm1 (Tm2)]90+xZr10−x (Tm=Fe, Co, Ni) amorphous alloys utilizing a newly developed low temperature wide band probehead-preamplifier system. A 11,6 T broad57Fe hyperfine field distribution around the average of 23.6 T together with a less intensive peak around 11 T has been found in Fe90.6Zr9.4, in excellent agreement with Mössbauer studies. A rather flat distribution around the average value of 14.8 T characterizes the transferred hyperfine field at the Zr sites in the same alloy. Both features provide strong evidence for a broad range of exchange interactions and variations in the spin density at the Fe sites in this material. A much narrower and symmetrical distribution at the Zr sites around 10 T in Co90Zr10 is evidence of the higher magnetic homogeneity of this alloy as compared to Fe90Zr10. In Fe60Ni30Zr10, in addition to the57Fe signal, a contribution from61Ni nuclei could be separated, corresponding to an average hyperfine field value of 15.3 T.

Keywords

Thin Film Strong Evidence Excellent Agreement Exchange Interaction Wide Band 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    E.A. Turov and M.P. Petrov,NMR in Ferro- and Antiferromagnets (Halsted Press, 1972).Google Scholar
  2. [2]
    R. Ohnuma, K. Shirakawa, M. Nose and T. Masumoto, IEEE Trans. Magn. MAG-16(1980) 1129.CrossRefGoogle Scholar
  3. [3]
    K. Oshima, M. Tanimoto, F.E. Fujita, M. Nose and T. Masumoto, Proc. 4th Int. Conf. on Rapidly Quenched metals, Sendai (1982) p. 1117.Google Scholar
  4. [4]
    P. Deppe, K. Fukamichi, F.S. Li, M. Rosenberg and M. Sostarich, IEEE Trans. Magn. MAG-20, No. 5 (1984) 1367.CrossRefGoogle Scholar
  5. [5]
    S.N. Kaul, Phys. Rev. B27(1983)6923.CrossRefADSGoogle Scholar
  6. [6]
    H. Yamamoto, H. Onodera, K. Hosoyama, T. Masumoto and H. Yamauchi, J. Magn. Magn. Mater. 31–34(1983)1579.CrossRefGoogle Scholar
  7. [7]
    H. Lerchner, K. Erdmann, D. Welz, M. Rosenberg and F.E. Luborsky, IEEE Trans. Magn. MAG-17, No. 6 (1981)2609.CrossRefGoogle Scholar
  8. [8]
    M. Wójcik, H. Lerchner and M. Rosenberg, Proc. XXII Congres Ampère, Zürich (1984) p. 115.Google Scholar
  9. [9]
    M.B. Stearns, Phys. Rev. 162, 2(1967)162.CrossRefGoogle Scholar
  10. [10]
    R.H. Dean and R.J. Urwin, J. Phys. C3(1970)1747.CrossRefADSGoogle Scholar
  11. [11]
    Varian NMR Table, 5th ed. (1965).Google Scholar
  12. [12]
    P. Deppe, private communication.Google Scholar
  13. [13]
    M.M. Abd-Elmeguid, U. Hobuss and H. Micklitz, Phys. Rev. B35(1987)4796.CrossRefADSGoogle Scholar
  14. [14]
    M. Rosenberg, U. Hardebusch, A. Schöne-Warnefeld, R. Wernhardt and K. Fukamichi, J. Phys. F (1987), to be published.Google Scholar
  15. [15]
    G. Wiesinger, A. Oppelt and K.H.J. Buschow, J. Magn. Magn. Mater. 22(1981)227.CrossRefADSGoogle Scholar
  16. [16]
    W. Brückner, K. Kleinstück and G.E.R. Schulze, Phys. Stat. Sol. 23(1967)475.Google Scholar
  17. [17]
    A.R. Arends and F. Pleiter, Hyp. Int. 7(1979)361.CrossRefGoogle Scholar
  18. [18]
    E. Daniel and J. Friedel, J. Phys. Chem. Sol. 24(1963)1601.CrossRefGoogle Scholar
  19. [19]
    H. Hiroyoshi and K. Fukamichi, J. Appl. Phys. 53, 3(1982)2226.CrossRefADSGoogle Scholar
  20. [20]
    J.M.D. Coey, D.H. Ryan and Vu Boliang, J. Appl. Phys. 55, 6(1984)1800.CrossRefADSGoogle Scholar
  21. [21]
    M. Kontani and J. Itoh, J. Phys. Soc. Japan 22(1967)345.CrossRefGoogle Scholar
  22. [22]
    M. Sostarich, S. Dey, P. Deppe, M. Rosenberg, G. Czjzek, V. Oestreich, H. Schmid and F.E. Luborsky, IEEE Trans. Magn. MAG-17, No. 6 (1981) 2612.CrossRefGoogle Scholar
  23. [23]
    Z.M. Stadnik, P. Griesbach, G. Dehe, P. Gütlich and T. Miyazaki, Phys. Rev. B 35, 1(1987)430.CrossRefADSGoogle Scholar

Copyright information

© J.C. Baltzer AG, Scientific Publishing Company 1988

Authors and Affiliations

  • H. Lerchner
    • 1
  • M. Rosenberg
    • 1
  1. 1.Experimentelle-Physik VIRuhr-UniversitätBochumFRG

Personalised recommendations