1. Observation of low-frequency excitations of hydrogen in zirconium
- Author
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S.N. Rapeanu, Zh.A. Kozlov, A. Beldiman, V. A. Semenov, I. Padureanu, and Aurel Radulescu
- Subjects
Zirconium ,Materials science ,Hydrogen ,Hydride ,chemistry.chemical_element ,Neutron scattering ,Condensed Matter Physics ,Inelastic neutron scattering ,Electronic, Optical and Magnetic Materials ,Metal ,Time of flight ,chemistry ,Lattice (order) ,visual_art ,visual_art.visual_art_medium ,Electrical and Electronic Engineering ,Atomic physics - Abstract
The inelastic neutron scattering (INS) on ZrHx systems (x=0.38, 0.52 and 0.80) revealed low-frequency excitations located within the energy range 2–10 meV. Besides the lattice vibrations specific to α-HCP metallic Zr and γ-FCO Zr hydride, the fine structure of these excitations is clearly observed. The origin of the new observed peaks is not very clear but a proton tunneling or a resonance effect in α-Zr lattice could be taken into account.
- Published
- 2000
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