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Article
Neutron scattering study of short-range correlations and ionic diffusion in copper selenide
The paper reports the results of a neutron scattering study of \( {\hbox{C}}{{\hbox{u}}_{{2 - \delta }}}{\hbox{Se}} \) ...
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Article
Crystal structure of non-stoichiometric copper selenides studied by neutron scattering and X-ray diffraction
Structural characteristics of non-stoichiometric copper selenides were studied by the elastic neutron and X-ray scattering techniques. Rietveld analysis was used to refine the structure of the high-temperature...
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Article
Neutron diffraction study of phase transitions in the superionic conductor Li0.25Cu1.75Se
Neutron diffraction studies of the superionic conductor Li0.25Cu1.75Se are reported. It is shown that gradual disordering in the cation sublattice with an increase in temperature leads to changes in the symmetry ...
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Article
Hydrogen vibrations in austenitic stainless steel
The vibrational modes of hydrogen in fcc Fe-25Cr-20Ni stainless steel with a hydrogen content of 0.33 at.% were studied by neutron spectroscopy. Hydrogen do** was performed at 810 K in a hydrogen-gas atmosph...
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Article
Phonon dispersion in austenitic stainless steel Fe18Cr12Ni2Mo
The phonon dispersion of Fe18Cr12Ni2Mo austenitic stainless steel was measured along the symmetry directions [001], [110] and [111]. Data were analysed in the frame of the Born–von Karman model of lattice dyna...
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Article
Phonon dispersion and elastic constants in Fe-Cr-Mn-Ni austenitic steel
The lattice dynamics of Fe-18Cr-10Mn-16Ni austenitic steel was studied by inelastic neutron scattering techniques. Phonon dispersion curves were measured in the [100], [011] and [111] directions at low wavevec...
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Article
Slow-neutron scattering investigation of condensed media
The works presented in the present paper are only a part of the extensive material on the neutron-dynamic investigations of the physics of condensed media, which has been accumulated over 30 years of the use o...
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Article
Double-pulse neutron spectrometers on IBR-2 and-30 fast-reactor beams. Basic characteristics and directions of research