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Extreme timescale core-level spectroscopy with tailored XUV pulses

MPS-Authors

Singla,  R.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Haynes,  D.
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Grguras,  I.
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Class 5 Photonics GmbH;

Schulz,  S.
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Deutsches Elektronen-Synchrotron DESY;

Liu,  H. Y.
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Simoncig,  A.
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Tellkamp,  F.
Machine Physics, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Cavalieri,  A. L.
Extreme Timescales, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

External Resource
Fulltext (public)

1805.01723.pdf
(Preprint), 3MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Singla, R., Haynes, D., Hanff, K., Grguras, I., Schulz, S., Liu, H. Y., et al. (2018). Extreme timescale core-level spectroscopy with tailored XUV pulses.


Cite as: http://hdl.handle.net/21.11116/0000-0007-17B6-2
Abstract
A new approach for few-femtosecond time-resolved photoelectron spectroscopy in condensed matter that balances the combined needs for both temporal and energy resolution is demonstrated. Here, the method is designed to investigate a prototypical Mott insulator, tantalum disulphide (1T-TaS2), which transforms from its charge-density-wave ordered Mott insulating state to a conducting state in a matter of femtoseconds. The signature to be observed through the phase transition is a charge-density-wave induced splitting of the Ta 4f core-levels, which can be resolved with sub-eV spectral resolution. Combining this spectral resolution with few-femtosecond time resolution enables the collapse of the charge ordered Mott state to be clocked. Precise knowledge of the sub-20-femtosecond dynamics will provide new insight into the physical mechanism behind the collapse and may reveal Mott physics on the timescale of electronic hopping.