Neutron spectroscopy of TiH0.74 after high pressure treatment

A. I. Kolesnikov; M. Prager; J. Tomkinson; I. O. Bashkin; V. Yu Malyshev; E. G. Ponyatovskii

doi:10.1088/0953-8984/3/32/002

Neutron spectroscopy of TiH_0.74 after high pressure treatment

A. I. Kolesnikov, M. Prager, J. Tomkinson, I. O. Bashkin, V. Yu Malyshev, E. G. Ponyatovskii

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35 Scopus citations

Abstract

High resolution neutron scattering studies of vibrational spectra (2-800 meV) were carried out on the in -, delta ' and delta -phases of titanium hydride, obtained after high pressure treatment. The observed splitting of the fundamental optic peak in the delta -phase spectrum can be explained by a strong H-H interaction along the c-axis. Well pronounced features are seen on the low energy side of the two- and three-phonon optic bands. These are assigned to bound bi- and tri-phonon excitations. This is the first observation of bi- and tri-phonons in metal hydrides.

Original language	English
Article number	002
Pages (from-to)	5927-5936
Number of pages	10
Journal	Journal of Physics Condensed Matter
Volume	3
Issue number	32
DOIs	https://doi.org/10.1088/0953-8984/3/32/002
State	Published - 1991
Externally published	Yes

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title = "Neutron spectroscopy of TiH0.74 after high pressure treatment",

abstract = "High resolution neutron scattering studies of vibrational spectra (2-800 meV) were carried out on the in -, delta ' and delta -phases of titanium hydride, obtained after high pressure treatment. The observed splitting of the fundamental optic peak in the delta -phase spectrum can be explained by a strong H-H interaction along the c-axis. Well pronounced features are seen on the low energy side of the two- and three-phonon optic bands. These are assigned to bound bi- and tri-phonon excitations. This is the first observation of bi- and tri-phonons in metal hydrides.",

author = "Kolesnikov, {A. I.} and M. Prager and J. Tomkinson and Bashkin, {I. O.} and Malyshev, {V. Yu} and Ponyatovskii, {E. G.}",

year = "1991",

doi = "10.1088/0953-8984/3/32/002",

language = "English",

volume = "3",

pages = "5927--5936",

journal = "Journal of Physics Condensed Matter",

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TY - JOUR

T1 - Neutron spectroscopy of TiH0.74 after high pressure treatment

AU - Kolesnikov, A. I.

AU - Prager, M.

AU - Tomkinson, J.

AU - Bashkin, I. O.

AU - Malyshev, V. Yu

AU - Ponyatovskii, E. G.

PY - 1991

Y1 - 1991

N2 - High resolution neutron scattering studies of vibrational spectra (2-800 meV) were carried out on the in -, delta ' and delta -phases of titanium hydride, obtained after high pressure treatment. The observed splitting of the fundamental optic peak in the delta -phase spectrum can be explained by a strong H-H interaction along the c-axis. Well pronounced features are seen on the low energy side of the two- and three-phonon optic bands. These are assigned to bound bi- and tri-phonon excitations. This is the first observation of bi- and tri-phonons in metal hydrides.

AB - High resolution neutron scattering studies of vibrational spectra (2-800 meV) were carried out on the in -, delta ' and delta -phases of titanium hydride, obtained after high pressure treatment. The observed splitting of the fundamental optic peak in the delta -phase spectrum can be explained by a strong H-H interaction along the c-axis. Well pronounced features are seen on the low energy side of the two- and three-phonon optic bands. These are assigned to bound bi- and tri-phonon excitations. This is the first observation of bi- and tri-phonons in metal hydrides.

UR - http://www.scopus.com/inward/record.url?scp=0002603183&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/3/32/002

DO - 10.1088/0953-8984/3/32/002

M3 - Article

AN - SCOPUS:0002603183

SN - 0953-8984

VL - 3

SP - 5927

EP - 5936

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 32

M1 - 002

ER -

Neutron spectroscopy of TiH_0.74 after high pressure treatment

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