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  1. No Access

    Chapter and Conference Paper

    Ultrafast Energy and Charge Transfer Processes in a Flexible Molecular Triad Designed for Organic Photovoltaics

    A detailed spectro-temporal analysis of the ultrafast transient absorption and fluorescence signals allows deciphering multiple energy and charge transfer processes in a light-harvesting molecular triad design...

    T. Roland, L. Liu, E. Heyer, A. Ruff, S. Ludwigs, R. Ziessel… in Ultrafast Phenomena XIX (2015)

  2. No Access

    Article

    Absence of polar order in LuFe2O4

    LuFe2O4 often is considered as a prototypical multiferroic with polar order arising from the electronic degrees of freedom only (“electronic ferroelectricity”). In the present work, we check the intrinsic nature ...

    A. Ruff, S. Krohns, F. Schrettle, V. Tsurkan… in The European Physical Journal B (2012)

  3. No Access

    Article

    Ultrafast photodissociation of Kn=3...9 clusters

    By means of femtosecond pump and probe technique we investigated the temporal evolution of the photodissociation of excited potassium clusters (3 ≤ n ≤ 9). For three different excitation energies E = 1.47 eV, 2.0...

    A. Ruff, S. Rutz, E. Schreiber, L. Wöste in Zeitschrift für Physik D Atoms, Molecules … (1996)