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.
|Number of pages||9|
|Journal||Journal of Alloys and Compounds|
|Publication status||Published - 3 Feb 2003|
- Heat capacity
- Neutron scattering
- Rare earth compounds