Femtosecond dynamics of electronic states in the Mott insulator 1 T-TaS 2 by time resolved photoelectron spectroscopy

@inproceedings{Perfetti2008FemtosecondDO,
  title={Femtosecond dynamics of electronic states in the Mott insulator 1 T-TaS 2 by time resolved photoelectron spectroscopy},
  author={Luca Perfetti and P A Loukakos and Maciej Lisowski and Uwe Bovensiepen and Martin Wolf and H. Berger and Silke Biermann and Antoine Georges},
  year={2008}
}
Photoexcitation of the Mott insulator 1T-TaS 2 by an intense laser pulse leads to an ultrafast transition toward a gapless phase. Besides the collapse of the electronic gap, the sudden excitation of the charge density wave (CDW) mode results in periodic oscillations of the electronic states. We employ time resolved photoelectron spectroscopy to monitor the rich dynamics of electrons and phonons during the relaxation toward equilibrium. The qualitative difference between the oscillatory dynamics… CONTINUE READING
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