2 papers
cond-mat.mtrl-sci2026
Implementation of rotational invariance for first-principles phonons and application to low-dimensional materials
Benoit Van Troeye, Xavier Gonze, Geoffrey Pourtois
The acoustic flexural (phonon) modes of low-dimensional materials should show a quadratic dispersion close to the Brillouin zone center. Any departure from this behavior in Density…
cond-mat.mtrl-sci2026
Optical-like interference control polar-phonons dispersions in 2D materials
Benoit Van Troeye, Geoffrey Pourtois
It has been argued that the polar phonon modes of two-dimensional (2D) materials should show a linear dependence close to the Brillouin zone center due to the reduced problem dimen…