Using lasers and x-rays to probe ultrafast dynamics.
A density-functional theory study demonstrating the existence of a metastable optical-excited phase of MoTe2 suggesting that ultrafast switching is possible in monolayer MoTe2
A free-electron laser study of sub-picosecond optical excitation-induced dynamics in the prototypical phase-change alloy Ge2Sb2Te5
A time-resolved x-ray absorption experiment indicating photo-assisted amorphization in Ge₂Sb₂Te₅.