title: Electronic structure of an XUV photogenerated solid-density aluminum plasma.
abstract: By use of high intensity XUV radiation from the FLASH free-electron laser at DESY, we have created highly excited exotic states of matter in solid-density aluminum samples. The XUV intensity is sufficiently high to excite an inner-shell electron from a large fraction of the atoms in the focal region. We show that soft-x-ray emission spectroscopy measurements reveal the electronic temperature and density of this highly excited system immediately after the excitation pulse, with detailed calculations of the electronic structure, based on finite-temperature density functional theory, in good agreement with the experimental results.
authors.affiliation: Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom. sam.vinko@physics.ox.ac.uk
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mesh_terms: D000535:Aluminum / Q000737:chemistry*; D004583:Electrons; D055668:Photochemical Processes; D058626:Plasma Gases / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D058626:Plasma Gases; D000535:Aluminum