Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
- Hedayat H.
- Bugini D.
- Karbassi S.
- Friedmann S.
- van Wezel J.
- Clark S. R.
- Sayers C.
- Da Como E.
- Cerullo G.
- Dallera C.
- Carpene E.
Publication date
January 2019
DOI Publisher
EDP Sciences Journal
EPJ Web of ConferencesAbstract
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
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