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Hyperfine Interactions

, Volume 80, Issue 1–4, pp 1011–1014 | Cite as

Experimental and theoretical investigations of the Knight shift of Pd and Ag in the alloy system Ag x Pd1−x

  • P. Gräf
  • H. Ebert
  • H. Akai
  • J. Voitländer
Section III.6: Metals And Alloys

Abstract

The Knight shift of Pd in Ag x Pd1−x has been determined for concentrationsx≦0.2. In full accordance with the expectations based on the behaviour of the magnetic susceptibility, it was found that the Knight shift of Pd is rapidly reduced in magnitude by adding Ag to Pd. To allow for a detailed interpretation of this finding, we have performed Korringa-Kohn-Rostoker coherent potential approximation (KKR-CPA) band structure calculations for Ag x Pd1−x. These calculations clearly demonstrate that the decrease in spin susceptibility with increasingx is accompanied with a decrease in core polarization. In contrast to Pd, the negative Knight shift of Ag on the Pd-rich side of the system is caused by the valence band contribution, as it is demonstrated by our calculations. This is caused by an intersite effect in analogy to the transferred hyperfine field found for non-magnetic elements dissolved in a magnetic host.

Keywords

Hyperfine Field Band Structure Calculation Knight Shift Coherent Potential Approximation Fermi Contact 
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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References

  1. [1]
    H. Ebert, J. Abart and J. Voitländer, J. Phys. F 14 (1984) 749.ADSCrossRefGoogle Scholar
  2. [2]
    A. Narath, J. Appl. Phys.39 (1968) 553.ADSCrossRefGoogle Scholar
  3. [3]
    P. Brill and J. Voitländer, Z. Phys. B 20 (1975) 369.ADSGoogle Scholar
  4. [4]
    J.A. Seitchik, A.C. Gossard and V. Jaccarino, Phys. Rev. 136 (1964) A1119.Google Scholar
  5. [5]
    M. Takigawa and H. Yasuoka, J. Phys. Soc. Japan 51 (1982) 787.ADSCrossRefGoogle Scholar
  6. [6]
    H. Akai, J. Phys. Condens. Matter 1 (1991) 8045.ADSCrossRefGoogle Scholar
  7. [7]
    V.L. Moruzzi, J.F. Janak and A.R. Williams,Calculated Electronic Properties of Metals (Pergamon, New York, 1978).Google Scholar
  8. [8]
    S. Blügel, H. Akai, R. Zeller and P.H. Dederichs, Phys. Rev. B 35 (1987) 3271.ADSCrossRefGoogle Scholar
  9. [9]
    H. Ebert, H. Winter and J. Voitländer, J. Phys. F 14 (1984) 2433.ADSCrossRefGoogle Scholar
  10. [10]
    R. Krieger and J. Voitländer, Z. Phys. B 40 (1980) 39.ADSCrossRefGoogle Scholar
  11. [11]
    H. Ebert and H. Winter, Solid State Commun, 63 (1987) 899.ADSCrossRefGoogle Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1993

Authors and Affiliations

  • P. Gräf
    • 1
  • H. Ebert
    • 1
  • H. Akai
    • 2
  • J. Voitländer
    • 1
  1. 1.Institut für Physikalische ChemieUniversität MünchenMunichGermany
  2. 2.Department of PhysicsNara Medical University KashiharaNaraJapan

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