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Impurities in Magnetic Insulators Studied by Low-Temperature Nuclear Orientation

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Abstract

Although the effects of impurities in metallic magnets have been extensively studied there have been far fewer experiments on impurities in insulating magnets, and, in an effort to understand this problem, we have investigated the effect of impurities in various systems. In MnCl2⋅4H2O samples doped with 1.6, 4.0 and 6.2% Co, the 54Mn NMRON line is significantly broadened compared to the line in the pure crystal and shows structure on the low frequency side. The nuclear spin-lattice relaxation time is also lower by an order of magnitude. 54Mn has also been doped into FeCl2⋅4H2O for which a 4-sublattice structure has been proposed and some details of this structure have been obtained.

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Authors and Affiliations

  1. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada

    M. R. Benam, J. Pond, L. Goehring & A. Kotlicki

  2. Department of Physics, Ferdowsi University of Mashdad, Mashdad, 91735-654, Iran

    M. R. Benam

  3. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada

    B. G. Turrell

Authors
  1. M. R. Benam
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  2. J. Pond
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  3. L. Goehring
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  4. A. Kotlicki
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  5. B. G. Turrell
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Benam, M.R., Pond, J., Goehring, L. et al. Impurities in Magnetic Insulators Studied by Low-Temperature Nuclear Orientation. Hyperfine Interactions 136, 415–419 (2001). https://doi.org/10.1023/A:1020533631948

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  • DOI: https://doi.org/10.1023/A:1020533631948

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