Hyperfine Interactions

, Volume 43, Issue 1–4, pp 501–506 | Cite as

Nuclear alignment of implanted160Tb in highly oriented pyrolytic graphite layers

  • B. Kastelein
  • B. Borst
  • A. J. de Jong
  • H. Postma
  • H. C. Meijer
New Developments


Low-temperature nuclear alignment of160Tb ions implanted in Highly Oriented Pyrolytic Graphite has been observed by the anisotropic intensity distribution of γ-rays. The data can be understood with an effective spin Hamiltonian containing combined magnetic and electric hyperfine interactions. Values deduced for the hyperfine parameters are A/k=(101±7) mK for the magnetic interaction, and P/k=(−3.7±0.9) mK for the nuclear electric quadrupole interaction, under the assumption that B=0 and Δ=0. Measurements in magnetic fields of 0.2 and 1.0 T directed along the graphite c-axis showed thermal saturation due to the strongly reduced heat conductivity of HOPG in the presence of a magnetic field.


Magnetic Field Hyperfine Interaction Magnetic Interaction Quadrupole Interaction Pyrolytic Graphite 
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Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1998

Authors and Affiliations

  • B. Kastelein
    • 1
  • B. Borst
    • 1
  • A. J. de Jong
    • 1
  • H. Postma
    • 1
  • H. C. Meijer
    • 1
  1. 1.Dept. of Applied PhysicsDelft University of TechnologyGA DelftThe Netherlands

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