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CDW-superlattice suppression probed in time-resolved XUV-photoemission at the border of the Brillouin zone

Timm Rohwer, Stefan Hellmann, Martin Wiesenmayer, Christian Sohrt, Ankatrin Stange, Bartosz Slomski, Lutz Kipp, Kai Rossnagel, and Michael Bauer

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Abstract

Time- and angle-resolved XUV-photoemission at the border of the first Brillouin zone is employed to monitor the ultrafast suppression of a (2×2×2) reconstruction characteristic for the charge density wave (CDW) phase in 1T-TiSe2. The correlation of lattice dynamics and transient electronic response, which is probed in this experiment in parallel, provides new insights into the puzzling nature of the CDW mechanism in 1T-TiSe2.

© 2010 Optical Society of America

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