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 Scopus citations

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 - Apr 14 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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