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Hyperfine Interactions

, Volume 28, Issue 1–4, pp 471–474 | Cite as

57Fe Mössbauer investigations in the series Fe4−2xRuxSix(1.0≦x≦1.7)

  • S. N. Mishra
  • D. Rambabu
  • A. K. Grover
  • R. G. Pillay
  • P. N. Tandon
  • H. G. Devare
  • R. Vijayaraghavan
Magnetism, Hyperfine Fields

Abstract

57Fe Mössbauer and magnetization studies on a new series Fe4−2xRuxSix (1.0≦x≦1.7) are reported. The system is seen to transform from a collinear ferromagnet for x≦1.2 to a cluster spin glass for x>=1.54 In the intermediate region the magnetic behaviour of the system, as probed by the Mössbauer effect, is dominated by the presence of clusters and their dynamics. The alloys have large ordering temperatures (∼ 750 K) throughout the series except for x>1.54 where they drop sharply. The moment values, in contrast, fall sharply from 4.8μB at x=1 to 0.5μB at x=1.6C. The average value of the HF at57Fe measured at 15 K does not change significantly throughout the series.

Keywords

Thin Film Spin Glass Magnetic Behaviour Intermediate Region Magnetization Study 
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/.
    P.N. Tandon, V.S. Patil, A.K. Grover, R.G. Pillay and H.G. Devare, Hyperfine Int. 15/16 (1983) 709, Phys. Lett. 98A (1983) 409, Solid State Commun. 48 (1983) 945.Google Scholar
  2. /2/.
    S.N. Mishra, D. Rambabu, A.K. Grover, R.G. Pillay, P.N. Tandon, H.G. Devare and R. Vijayaraghavan, Solid State Commun. 53 (1985) 321 and J. Appl. Phys. 57 (1985) 3258.Google Scholar
  3. /3/.
    B. Window, J. Phys. E4 (1971) 401.Google Scholar

Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1986

Authors and Affiliations

  • S. N. Mishra
    • 1
  • D. Rambabu
    • 1
  • A. K. Grover
    • 1
  • R. G. Pillay
    • 1
  • P. N. Tandon
    • 1
  • H. G. Devare
    • 1
  • R. Vijayaraghavan
    • 1
  1. 1.Tata Institute of Fundamental ResearchBombayIndia

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