Charge density wave dynamics from ultrafast XUV ARPES
1 Max Planck Research Dept. for Structural Dynamics, Centre for Free-Electron Laser Science, University Of Hamburg, Hamburg, Germany
2 Clarendon Laboratory, Oxford University, Parks Road, Oxford, UK
3 Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell, UK
4 LUXOR, CNR-INFM, Padova, Italy
5 Diamond Light Source Ltd., Harwell, UK
6 Institute of Physics of Complex Matter, EPFL, Lausanne, Switzerland
Ultrafast angle–resolved XUV photoemission reveals the time- and momentum-dependent electronic structure of 1T–TaS2, a hybrid Mott and charge-density-wave insulator. Both electronic orderings melt well before the lattice responds, suggesting that electronic correlations play a role not just in the Mott localization but in the CDW ordering as well.
© Owned by the authors, published by EDP Sciences, 2013
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