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Electronic Magnetic Ordering Induced by Hyperfine Interactions in Terbium and Holmium Gallium Garnets

  • J. Hammann
  • P. Manneville

Abstract

Previous susceptibility measurements on the terbium and the holmium gallium garnets (TbGaG and HoGaG) by Wolf et al 1 down to 1°K and by Cooke et al.2 down to 0.6°K indicated no magnetic ordering for these compounds. The results have been used in the case of TbGaG by Ayant et al 3 to evaluate the crystal-field splitting of the Tb3+ ion and they found two low-lying singlet energy levels well isolated from the upper ones with a separation of Δ = 4.2°K and a magnetic moment at saturation m s of 7.35µB. In the case of HoGaG, Onn and Meyer published specific heat measurements4 which are consistent with the same two-singlet scheme with Δ = 7.4°K.

Keywords

Hyperfine Interaction Specific Heat Measurement Nuclear Contribution Carbon Resistor Heat Pulse Method 
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References

  1. 1.
    W.P. Wolf, M. Ball, M.T. Hutchings, M.J.M. Leask, and A.F.G. Wyast, J. Phys. Soc. Jap. 17 (suppl. Bl), 443 (1962).Google Scholar
  2. 2.
    A.H. Cooke, T.L. Thorp, and M.R. Wells, Proc. Phys. Soc. 92, 400 (1967).ADSCrossRefGoogle Scholar
  3. 3.
    Y. Ayant, A. Belorizky, and J. Rosset, Czech. J. Phys. B17, 361 (1967).ADSCrossRefGoogle Scholar
  4. 4.
    D.G. Onn and H. Meyer, Phys. Rev. 156, 663 (1967).ADSCrossRefGoogle Scholar
  5. 5.
    A. Gavignet-Tillard and J. Hammann, in Proc. 12th Intern. Conf. Low Temp. Phys. Academic Press of Japan, Tokyo 1971, p. 697.Google Scholar
  6. 6.
    H.W. Capel, R. Bidaux, P. Carrara, and B. Vivet, Phys. Lett. 22, 400 (1966).ADSCrossRefGoogle Scholar
  7. 7.
    J. Hammann, Acta Cryst. B25, 1853 (1969).Google Scholar
  8. 8.
    Y-L. Wang and B.R. Cooper, Phys. Rev. 172, 539 (1968).ADSCrossRefGoogle Scholar
  9. 9.
    T. Murao, J. Phys. Soc. Japan 31, 683 (1971).ADSCrossRefGoogle Scholar
  10. 10.
    A. Abragam and B. Bleaney, EPR of Transition Ions, Clarendon Press, Oxford (1970).Google Scholar
  11. 11.
    T. Murao (to be published).Google Scholar

Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • J. Hammann
    • 1
  • P. Manneville
    • 1
  1. 1.Commissariat à l’Energie AtomiqueCEN SaclayGif-sur-YvetteFrance

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