Ultrafast Science / 2022 / Article / Fig 7

Review Article

Theoretical Insights into Ultrafast Dynamics in Quantum Materials

Figure 7

Photoexcited lattice dynamics in TiSe2. (a) The nontrivial symmetrically inequivalent Ti and Se atoms with PLD. (b) Schematic diagram of in-plane displacement . (c, d) The in-plane and out-of-plane displacement , , respectively. (e) The curve marked by hollow circles and the other curve indicate the ground state potential energy surface (PES) and the nonequilibrium time-dependent PES, respectively.