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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

Abstract

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.

Keywords

Magnetic Field Hyperfine Interaction Magnetic Interaction Quadrupole Interaction Pyrolytic Graphite 
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

© 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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