Vibrational dynamics of amorphous beryllium hydride and lithium beryllium hydrides

Sujatha Sampath, Alexander I. Kolesnikov, Kristina M. Lantzky, Jeffery Yarger

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The vibrational density of states of amorphous beryllium hydride (a-Be H2) and lithium beryllium hydrides have been studied using inelastic neutron scattering, infrared, and Raman spectroscopies. The positions of the symmetrical (120-180 meV) and antisymmetrical (200-260 meV) Be-H stretching modes and those of the H-Be-H bending mode (50-120 meV) have been determined and the results discussed and compared with recent theoretical calculations. With the addition of lithium to the beryllium hydride network, the vibrational bands are shifted to lower energies, indicating a less rigid network.

Original languageEnglish (US)
Article number134512
JournalJournal of Chemical Physics
Volume128
Issue number13
DOIs
StatePublished - 2008

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beryllium hydrides
lithium hydrides
Beryllium
Lithium
Hydrides
Inelastic neutron scattering
Stretching
Raman spectroscopy
Infrared spectroscopy
inelastic scattering
neutron scattering
lithium
infrared spectroscopy
spectroscopy
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Vibrational dynamics of amorphous beryllium hydride and lithium beryllium hydrides. / Sampath, Sujatha; Kolesnikov, Alexander I.; Lantzky, Kristina M.; Yarger, Jeffery.

In: Journal of Chemical Physics, Vol. 128, No. 13, 134512, 2008.

Research output: Contribution to journalArticle

Sampath, Sujatha ; Kolesnikov, Alexander I. ; Lantzky, Kristina M. ; Yarger, Jeffery. / Vibrational dynamics of amorphous beryllium hydride and lithium beryllium hydrides. In: Journal of Chemical Physics. 2008 ; Vol. 128, No. 13.
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