EPJ Web Conf.
Volume 205, 2019XXI International Conference on Ultrafast Phenomena 2018 (UP 2018)
|Number of page(s)||3|
|Section||Dynamics in Solids|
|Published online||16 April 2019|
Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
1 Dipartimento di Fisica, Politecnico di Milano, 20133 Milano, Italy
2 HH Wills Physics Laboratory, University of Bristol, BS8 1TL Bristol, UK
3 Institute for Theoretical Physics, Institute of Physics, University of Amsterdam, 1090 GL Amsterdam, The Netherlands
4 Department of Physics and Centre for Photonics and Photonic Materials, University of Bath, BA2 7AY Bath, UK
5 IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, 20133 Milano, Italy
* Corresponding author: firstname.lastname@example.org
Published online: 16 April 2019
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.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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