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Neutron-diffraction study of the insertion scheme of hydrogen in Nd FeB

Journal of Applied Physics, ISSN: 0021-8979, Vol: 78, Issue: 3, Page: 1892-1898
1995
  • 70
    Citations
  • 0
    Usage
  • 38
    Captures
  • 0
    Mentions
  • 0
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Metrics Details

  • Citations
    70
    • Citation Indexes
      70
  • Captures
    38

Article Description

Results are presented of a neutron powder diffraction experiment performed at room temperature on the NdFeBH series. The location of the hydrogen (or deuterium) atoms within the crystal lattice is described. After an analysis of the crystal structure of NdFe B, NdFeBH, NdFe BH, NdFeBH, and NdFeBH, a filling scheme of the interstitial sites by hydrogen atoms is proposed. This filling scheme is compared and discussed with that previously obtained on other R FeB alloys in particular with R=Ce, Y, Ho, Er. The use of all these compositions provides a better understanding of the way the Nd FeB structure is modified by insertion of hydrogen. The evolution of the shortest iron-iron interatomic distances is also analyzed and related to the change in magnetism. © 1995 American Institute of Physics.

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