Neutron scattering study of NiHx at 77K |
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| Authors: | R Wiśniewski R Dimitrova I Natkaniec J Wasicki |
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| Institution: | Institute of Physics, Technical University of Warsaw, 00-662 Warsaw, Poland;Institute of Organic Chemistry, Bulgarian Academy of Sciences, 1040 Sofia, Bulgaria;Institute of Nuclear Physics, 31-341 Kraków, Poland;Institute of Physics, A. Mickiewicz University, 60-780 Poznań, Poland |
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| Abstract: | The results of simultaneous measurements of inelastic incoherent neutron scattering (IINS) and neutron diffraction on NiHx system with x = 0.40, 0.28 and 0.12 at temperatures of 77 K are briefly presented. In the phonon density of states, supposing a one-phonon mechanism for the scattering process, the optic modes appear as a broad band from 70 to 140 meV with a strong peak at 90 meV and weak peaks at 105 and 130 meV. Neutron diffraction confirms information about the phase composition of the samples investigated. |
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