Electron energy loss and angular asymmetry induced by elastic scattering in superfluid helium nanodroplets
Source abstract
Abstract
Helium nanodroplets are ideal model systems to unravel the complex interaction of condensed matter with ionizing radiation. Here we study the effect of purely elastic electron scattering on angular and energy distributions of photoelectrons emitted from He nanodroplets of variable size (10-109 atoms per droplets). For large droplets, photoelectrons develop a pronounced anisotropy along the incident light beam due to a shadowing effect within the droplets. In contrast, the detected photoelectron spectra are only weakly perturbed. This opens up possibilities for photoelectron spectroscopy of dopants embedded in droplets provided they are smaller than the penetration depth of the light and the trapping range of emitted electrons in liquid helium.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Quantum, superfluid, helium dynamics · Atomic and Subatomic Physics Research · High-pressure geophysics and materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics and Astronomy, Aarhus University, Denmark
Quantum Center of Excellence for Diamond and Emergent Materials and Department of Physics, Indian Institute of Technology Madras, India
Institute of Physics, University of Freiburg, Germany
Elettra Sincrotrone, Trieste, Italy
Institut für Physik, Universität Rostock, Germany
Funding
DanScatt · Deutsche Forschungsgemeinschaft · Department of Science and Technology, Ministry of Science and Technology, India · Scheme for Promotion of Academic and Research Collaboration · Ministry of Education, India · Max-Planck-Gesellschaft · H2020 Marie Skłodowska-Curie Actions · European Cooperation in Science and Technology · Danmarks Frie Forskningsfond · CALIPSOplus · Horizon 2020 · Carlsbergfondet
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