title: A portable ultrahigh-vacuum system for advanced synchrotron radiation studies of thin films and nanostructures: EuSi2 nano-islands.
abstract: A portable ultrahigh-vacuum system optimized for in situ variable-temperature X-ray scattering and spectroscopy experiments at synchrotron radiation beamlines was constructed and brought into operation at the synchrotron radiation facility ANKA of the Karlsruhe Institute of Technology, Germany. Here the main features of the new instrument are described and its capabilities demonstrated. The surface morphology, structure and stoichiometry of EuSi2 nano-islands are determined by in situ grazing-incidence small-angle X-ray scattering and X-ray absorption spectroscopy. A size reduction of about a factor of two of the nano-islands due to silicide decomposition and Eu desorption is observed after sample annealing at 1270 K for 30 min.
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Shyjumon
authors.initials: S
authors.lastname: Ibrahimkutty
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Anja
authors.initials: A
authors.lastname: Seiler
authors.affiliation: Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
authors.forename: Tim
authors.initials: T
authors.lastname: Prüßmann
authors.affiliation: Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
authors.forename: Tonya
authors.initials: T
authors.lastname: Vitova
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Ramu
authors.initials: R
authors.lastname: Pradip
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Olga
authors.initials: O
authors.lastname: Bauder
authors.affiliation: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Wochner
authors.affiliation: Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
authors.forename: Anton
authors.initials: A
authors.lastname: Plech
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Tilo
authors.initials: T
authors.lastname: Baumbach
authors.affiliation: Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
authors.forename: Svetoslav
authors.initials: S
authors.lastname: Stankov
keywords: EXAFS; GISAXS; XANES; in situ experiments; rare-earth silicides