Fig. 3: Lifting of the dynamical instability of the 1 × 1 phase.
From: Phonon transport manipulation in TiSe2 via reversible charge density wave melting
Phonon dispersion of the 1 × 1 phase for different concentrations, ne, of charge carriers in the conduction band provided by impurity doping (top row) or photoexcitation (bottom row). The phonon dispersion of the undoped 1 × 1, exhibiting the characteristic instability at the M point, is shown on the left-hand side.
