We investigate the driving mechanism leading to charge-density-wave transition in 1T-TiSe2 single crystals. Our results show that both exciton instability and phonons cooperate to develop the charge ordered phase below 202 K.
- Charge density waves
- Transition metal dichalcogenides
- Phase transitions
- Ultrafast spectroscopy
Hedayat, H., Bugini, D., Karbassi, S., Friedemann, S., van Wezel, J., Clark, S., ... Carpene, E. (2019). Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics. EPJ Web of Conferences, 205(04008), . https://doi.org/10.1051/epjconf/201920504008