Importance of Non-Adiabatic Effects on Kohn Anomalies in 1D metals

Enrico Marazzi, Samuel Poncé, Jean-Christophe Charlier +1

Kohn anomalies are kinks or dips in phonon dispersions which are pronounced in low-dimensional materials. We investigate the effects of non-adiabatic phonon self-energy on Kohn ano…