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NMRON Study of Magnetically Ordered (166mHo)HoF3

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Abstract

A NMRON study of magnetically ordered HoF3 using in-situ neutron activated 166mHo (I=7) isoelectronic probes in a spherical single crystal is presented. The optimal sensitivity to resonant change in the gamma-ray anisotropy of the 810 keV daughter gamma-ray emission has been utilised to track the lowest nuclear Zeeman substate resonance over an applied magnetic field range from 0.300 to 0.524 T, corresponding to the frequency range 1.56 to 1.78 GHz. The 2nd lowest substate resonance has also been observed at 0.3 T leading to a value P/h=−32.9(14) MHz for the 166mHo quadrupolar splitting which is consistent with predictions of a dominant negative pseudo-quadrupole interaction in this system. The Ho3+ electronic moment, in zero applied magnetic field, is projected to be 16% smaller than measured previously with neutron diffraction.

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Authors and Affiliations

  1. School of Physics, University College, The University of New South Wales, Australian Defence Force Academy, Canberra, ACT, 2600, Australia

    W. D. Hutchison, D. H. Chaplin & S. J. Harker

  2. Department of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK

    G. J. Bowden

Authors
  1. W. D. Hutchison
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  2. D. H. Chaplin
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  3. S. J. Harker
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  4. G. J. Bowden
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Hutchison, W.D., Chaplin, D.H., Harker, S.J. et al. NMRON Study of Magnetically Ordered (166mHo)HoF3 . Hyperfine Interactions 136, 307–312 (2001). https://doi.org/10.1023/A:1020573322668

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  • DOI: https://doi.org/10.1023/A:1020573322668

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