Advertisement

Hyperfine Interactions

, Volume 94, Issue 1, pp 1989–1993 | Cite as

Magnetic defect structure of iron-rich Fe x O

  • Catherine A. McCammon
  • Quentin A. Pankhurst
Magnetism and Magnetic Materials

Abstract

Mössbauer spectra were recorded at 80 and 4.2 K for Fe x O (x> 0.95) samples that had been synthesized at 1000 ‡C and pressures up to 10 GPa. The spectra, which consist predominantly of six broadened lines, were fit to three magnetic components: bulk Fe2+, defect cluster Fe2+ and defect cluster Fe3+. Mean hyperfine parameter values for bulk Fe2+ were calculated using second-order perturbation theory, and correlations between fluctuations were determined from the mean-square linewidths. Implications for the magnetic defect structure of Fe x O are discussed.

Keywords

Thin Film Perturbation Theory Defect Structure Magnetic Component Defect Cluster 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    R.M. Hazen and R. Jeanloz, Rev. Geophys. Space Phys. 22(1984)37.Google Scholar
  2. [2]
    G.J. Long and F. Grandjean, in:Advances in Solid State Chemistry, Vol. 2, ed. C.R.A. Catlow (JAI Press, London, 1991) p. 187.Google Scholar
  3. [3]
    J. Jing and S.J. Campbell, Hyp. Int. 68(1991)283.Google Scholar
  4. [4]
    J. Jing, S.J. Campbell and H. Engelmann, Hyp. Int. 78(1993)469.Google Scholar
  5. [5]
    C.A. McCammon, Science 259(1993)66.Google Scholar
  6. [6]
    M.E. Lines and M. Eibschütz, Solid State Commun. 45(1983)435.Google Scholar
  7. [7]
    C.A. McCammon, J. Magn. Magn. Mater. 104–107(1992)1937.Google Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • Catherine A. McCammon
    • 1
  • Quentin A. Pankhurst
    • 2
  1. 1.Bayerisches GeoinstitutUniversität BayreuthBayreuthGermany
  2. 2.Department of PhysicsUniversity of LiverpoolLiverpoolUK

Personalised recommendations