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Showing 1–5 of 5 results
Advanced filters: Author: Alexander Späh Clear advanced filters

  • Photoionization of atoms and molecules is a complex process and requires sensitive probes to explore the ultrafast dynamics. Here the authors combine transient absorption and photo-ion spectroscopy methods to explore and control the attosecond pulse initiated excitation, ionization and Auger decay in Kr atoms.

    • Konrad Hütten
    • Michael Mittermair
    • Birgitta Bernhardt
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-5

  • The phase transition between water and ice is a ubiquitous phenomenon in nature. Here, the authors conduct a time-resolved x-ray scattering experiment using X-ray Free Electron Lasers to elucidate a comprehensive picture of the melting and recrystallization dynamics of crystalline ice, based on direct structural information.

    • Cheolhee Yang
    • Marjorie Ladd-Parada
    • Kyung Hwan Kim
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Obtaining experimental evidence of a liquid-liquid phase transition in supercooled water is challenging due to the rapid crystallization. Here the authors drive low-density amorphous ice to the conditions of liquid-liquid coexistence using ultrafast laser heating and observe the liquid-liquid phase transition with femtosecond x-ray laser pulses.

    • Katrin Amann-Winkel
    • Kyung Hwan Kim
    • Anders Nilsson
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • The dynamics of liquid water is rich due to its complex, highly disordered hydrogen-bond network, which hasn’t been fully understood. Perakis et al. measure water dynamics at sub-100 fs and show that it cannot be described by simple thermal motion due to the build-up of tetrahedral structures upon supercooling.

    • Fivos Perakis
    • Gaia Camisasca
    • Anders Nilsson
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10