Neutron spectroscopy of aluminium trihydride

A. I. Kolesnikov; M. Adams; V. E. Antonov; N. A. Chirin; E. A. Goremychkin; G. G. Inikhova; Yu E. Markushkin; M. Prager; I. L. Sashin

doi:10.1088/0953-8984/8/15/004

Neutron spectroscopy of aluminium trihydride

A. I. Kolesnikov, M. Adams, V. E. Antonov, N. A. Chirin, E. A. Goremychkin, G. G. Inikhova, Yu E. Markushkin, M. Prager, I. L. Sashin

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14 Scopus citations

Abstract

The lattice dynamics of α-AlH₃ and α-AlD₃ were studied by inelastic neutron scattering (INS). The hydrogen optic modes in the INS spectra were shown to form a broad structured band which exhibited an harmonic isotopic behaviour. In contrast, the low-energy part of the phonon spectra, formed mainly by the vibrations of the metal atoms, showed pronounced anharmonicity. The temperature dependence of the AlH₃ heat capacity derived from the INS data agrees with the available experimental dependence at 50-150 K.

Original language	English
Pages (from-to)	2529-2538
Number of pages	10
Journal	Journal of Physics Condensed Matter
Volume	8
Issue number	15
DOIs	https://doi.org/10.1088/0953-8984/8/15/004
State	Published - Apr 8 1996
Externally published	Yes

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@article{37155d6fb6db401bb43d3ac99821b87c,

title = "Neutron spectroscopy of aluminium trihydride",

abstract = "The lattice dynamics of α-AlH3 and α-AlD3 were studied by inelastic neutron scattering (INS). The hydrogen optic modes in the INS spectra were shown to form a broad structured band which exhibited an harmonic isotopic behaviour. In contrast, the low-energy part of the phonon spectra, formed mainly by the vibrations of the metal atoms, showed pronounced anharmonicity. The temperature dependence of the AlH3 heat capacity derived from the INS data agrees with the available experimental dependence at 50-150 K.",

author = "Kolesnikov, {A. I.} and M. Adams and Antonov, {V. E.} and Chirin, {N. A.} and Goremychkin, {E. A.} and Inikhova, {G. G.} and Markushkin, {Yu E.} and M. Prager and Sashin, {I. L.}",

year = "1996",

month = apr,

day = "8",

doi = "10.1088/0953-8984/8/15/004",

language = "English",

volume = "8",

pages = "2529--2538",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

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TY - JOUR

T1 - Neutron spectroscopy of aluminium trihydride

AU - Kolesnikov, A. I.

AU - Adams, M.

AU - Antonov, V. E.

AU - Chirin, N. A.

AU - Goremychkin, E. A.

AU - Inikhova, G. G.

AU - Markushkin, Yu E.

AU - Prager, M.

AU - Sashin, I. L.

PY - 1996/4/8

Y1 - 1996/4/8

N2 - The lattice dynamics of α-AlH3 and α-AlD3 were studied by inelastic neutron scattering (INS). The hydrogen optic modes in the INS spectra were shown to form a broad structured band which exhibited an harmonic isotopic behaviour. In contrast, the low-energy part of the phonon spectra, formed mainly by the vibrations of the metal atoms, showed pronounced anharmonicity. The temperature dependence of the AlH3 heat capacity derived from the INS data agrees with the available experimental dependence at 50-150 K.

AB - The lattice dynamics of α-AlH3 and α-AlD3 were studied by inelastic neutron scattering (INS). The hydrogen optic modes in the INS spectra were shown to form a broad structured band which exhibited an harmonic isotopic behaviour. In contrast, the low-energy part of the phonon spectra, formed mainly by the vibrations of the metal atoms, showed pronounced anharmonicity. The temperature dependence of the AlH3 heat capacity derived from the INS data agrees with the available experimental dependence at 50-150 K.

UR - http://www.scopus.com/inward/record.url?scp=2542634701&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/8/15/004

DO - 10.1088/0953-8984/8/15/004

M3 - Article

AN - SCOPUS:2542634701

SN - 0953-8984

VL - 8

SP - 2529

EP - 2538

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 15

ER -

Neutron spectroscopy of aluminium trihydride

Abstract

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