Extreme timescale core-level spectroscopy with tailored XUV pulses

Singla, R.; Haynes, D.; Hanff, K.; Grguraš, I.; Schulz, S.; Liu, Haiyun; Simoncig, A.; Tellkamp, F.; Bajt, S.; Rossnagel, K.; Cavalieri, A. L.

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Extreme timescale core-level spectroscopy with tailored XUV pulses

MPS-Authors

/persons/resource/persons133785

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

/persons/resource/persons211336

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

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

/persons/resource/persons222273

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;

/persons/resource/persons133797

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

/persons/resource/persons140757

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

/persons/resource/persons182596

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

/persons/resource/persons60433

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

External Resource

https://arxiv.org/abs/1805.01723
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1805.01723.pdf
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引用

Singla, R., Haynes, D., Hanff, K., Grguraš, I., Schulz, S., Liu, H., Simoncig, A., Tellkamp, F., Bajt, S., Rossnagel, K., & Cavalieri, A. L. (2018). Extreme timescale core-level spectroscopy with tailored XUV pulses.

引用: https://hdl.handle.net/21.11116/0000-0007-17BF-9

要旨

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 spectralresolution with few-femtosecond time resolution enables the collapse ofthe 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.