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Hyperfine Interactions

, Volume 8, Issue 1–3, pp 229–238 | Cite as

NMR-on of182Ta and183Ta in Fe

  • A. L. Allsop
  • D. H. Chaplin
  • D. W. Murray
  • N. J. Stone
Article

Abstract

Nuclear magnetic resonance has been observed on radioactive182Ta and183Ta oriented at low temperature in an Fe host, by detection of the change in spatial anisotropy of γ-rays emitted during nuclear decay. By measuring the resonant frequencies of183Ta in four different applied magnetic fields the nuclear magnetic moment and hyperfine field have been deduced. These are:
$$|\mu \left( {{}^{183}Ta; I = \tfrac{\user2{7}}{\user2{2}}} \right)| = 2.28(3)\mu _{\rm N} and B_{hf} \left( {Ta\underline {Fe} at 0 K} \right) = - 67.2(1.3)T$$
. The spin of the ground state of182Ta has been determined asI=3 by comparing resonance results with those obtained in a thermal equilibrium nuclear orientation study. The ratio of the resonant frequencies observed for182Ta and183Ta at one applied field value yields a magnetic moment for the former of
$$|\mu \left( {{}^{182}Ta; I = \user2{3}} \right)| = 2.91(3)\mu _{\rm N} $$
. The spin lattice relaxation time for183TaFe (0.12 at% Ta) at 18 mK in an applied field of 0.5 T has been found to be 40(10) s.

Keywords

Nuclear Magnetic Resonance Resonant Frequency Applied Field Applied Magnetic Field Hyperfine Field 
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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Copyright information

© North-Holland Publishing Company 1980

Authors and Affiliations

  • A. L. Allsop
    • 1
  • D. H. Chaplin
    • 1
  • D. W. Murray
    • 1
  • N. J. Stone
    • 1
  1. 1.Mullard Cryomagnetic LaboratoryClarendon LaboratoryOxfordUK

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