| Ultrafast melting of a charge-density wave in the Mott insulator 1T-TaS2. | |
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MedLine Citation:
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PMID: 21231136 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Femtosecond time-resolved core-level photoemission spectroscopy with a free-electron laser is used to measure the atomic-site specific charge-order dynamics of the charge-density wave in the Mott insulator 1T-TaS2. After strong photoexcitation, a prompt loss of charge order and subsequent fast equilibration dynamics of the electron-lattice system are observed. On the time scale of electron-phonon thermalization, about 1 ps, the system is driven across a phase transition from a long-range charge ordered state to a quasiequilibrium state with domainlike short-range charge and lattice order. The experiment opens the way to study the nonequilibrium dynamics of condensed matter systems with full elemental, chemical, and atomic-site selectivity. |
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Authors:
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S Hellmann; M Beye; C Sohrt; T Rohwer; F Sorgenfrei; H Redlin; M Kalläne; M Marczynski-Bühlow; F Hennies; M Bauer; A Föhlisch; L Kipp; W Wurth; K Rossnagel |
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Publication Detail:
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Type: Journal Article Date: 2010-10-27 |
Journal Detail:
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Title: Physical review letters Volume: 105 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2011-01-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 187401 Citation Subset: - |
Affiliation:
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Institute for Experimental and Applied Physics, University of Kiel, 24098 Kiel, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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