Lattice dynamics of YCu2

K. Hense, Ernst Gratz, A. Lindbaum, H. Michor, H. Nowotny, F. Güthoff, A. Hoser, P. Knoll

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The lattice dynamics of the orthorhombic YCu2 compound has been studied by inelastic neutron scattering on a single crystal. An axially symmetric Born-von Karman model was applied to fit the neutron data. Ab initio calculations of the lattice dynamics at the Γ-point provided important additional information for the Born-von Karman fit procedure. The calculated phonon density of states was compared with time-of-flight experiments on powdered YCu2 sample material. The experimental studies were completed by Raman experiments and measurements of specific heat, thermal expansion, and compressibility.

Original languageEnglish
Pages (from-to)28-36
Number of pages9
JournalJournal of Alloys and Compounds
Volume349
Issue number1-2
DOIs
Publication statusPublished - 3 Feb 2003
Externally publishedYes

Keywords

  • Heat capacity
  • Neutron scattering
  • Phonons
  • Rare earth compounds

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