First-principles investigation of the lattice dynamics of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ε</mml:mi><mml:mo>−</mml:mo><mml:mi mathvariant="normal">GaSe</mml:mi></mml:math>
We have calculated the bulk-phonon dispersion of the layered semiconductor $\ensuremath{\epsilon}\ensuremath{-}\mathrm{GaSe}$ using ab initio methods. In contrast to previous mo...