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05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.


MUST2022 Conference- a great success!
New scientific highlights- by MUST PIs Wörner, Chergui, and Richardson
FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”
Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science
New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science
International Day of Women and Girls in Science- SSPh asked female scientists about their experiences
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EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL
Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis
NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules
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Ultrafast Dynamics in solids probed by time-resolved XUV-ARPES

Date Di, 31.05.2016 - Di, 31.05.2016
Time 11.00
Speaker Michael Bauer, Institute of Experimental and Applied Physics, University of Kiel, D-24098 Kiel, Germany
Location ETH Science City, HPF G6
Program Time- and angle-resolved photoemission spectroscopy is the potentially most direct and comprehensive, energy- and momentum-selective probe of ultrafast processes in solids that couple to the electronic degrees of freedom. Angular resolution enables one in this context to monitor the temporal evolution of the valence electronic band structure of a solid at selected - and possibly critical -
points in momentum space [1]. The application of XUV photon pulses enlarges the accessible momentum regime considerably so that band structure transients within the entire Brillouin zone can be recorded [2, 3].
In this contribution some recent results on the ultrafast dynamics in solids as probed by time-resolved XUV-ARPES will be presented. Examples include hot electron dynamics in graphite [3], ultrafast melting processes of charge-ordered phases in transition metal dichalcogenides [4, 5], and coherent phonon dynamics in the iron-pnictide BaFe2As2 [6].

[1] F. Schmitt et al., “Transient Electronic Structure and Melting of a Charge Density Wave in TbTe3” Science 321, 1649 (2008).
[2] S. Mathias et al., “Angle Resolved Photoemission Spectroscopy with a Femtosecond High Harmonic Light Source using a 2D Imaging Electron Analyzer” Rev. Sci. Instr. 78, 083105 (2007).
[3] A. Stange et al., “Hot Electron Cooling in Graphite: Supercollision versus Hot Phonon Decay” Phys. Rev. B 92, 184303 (2015).
[4] T. Rohwer et al., “Collapse of long-range charge order tracked by time-resolved photoemission at high momenta” Nature 471, 490 (2011).
[5] S. Hellmann et al., „Time-domain classification of charge-density-wave insulators” Nat. Commun. 3, 1069 (2012).
[6] L. X. Yang et al., „Ultrafast modulation of the chemical potential in BaFe2As2 by coherent phonons”, Phys. Rev. Lett. 112, 207001 (2014).
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