Hydrogen motion in lanthanum hydrides by means of quasielastic neutron scattering

C. Karmonik, T. J. Udovic, J. J. Rush

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

The hydrogen dynamics in LaHx was studied for different concentrations x≥2.5 at different temperatures by quasielastic neutron scattering. The neutron spectra show the existence of both long-range translational diffusion and localized motion. The prefactor of the jump rate for the first process exhibits a maximum around x = 2.75. The radius for the second motion is in agreement with neutron powder diffraction measurements which support a localized motion of H confined in an octahedral site.

Original languageEnglish (US)
Pages (from-to)149-154
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume513
DOIs
StatePublished - 1998
EventProceedings of the 1998 MRS Spring Meeting - San Francisco, CA, USA
Duration: Apr 13 1998Apr 17 1998

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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