Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Phonon dispersion relations and density of sates for germanium (Ge). (a) Solid lines: theoretical dispersion relations obtained with the BCM, where the x-axis indicates q values along the high-symmetry directions of the Brillouin zone. Symbols: data from neutron scattering experiments [33]. (b) Density of states calculated from BCM dispersion relations.
