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Title: ALICE—An advanced reflectometer for static and dynamic experiments in magnetism at synchrotron radiation facilities

We report on significant developments of a high vacuum reflectometer (diffractometer) and spectrometer for soft x-ray synchrotron experiments which allows conducting a wide range of static and dynamic experiments. Although the chamber named ALICE was designed for the analysis of magnetic hetero- and nanostructures via resonant magnetic x-ray scattering, the instrument is not limited to this technique. The versatility of the instrument was testified by a series of pilot experiments. Static measurements involve the possibility to use scattering and spectroscopy synchrotron based techniques (photon-in photon-out, photon-in electron-out, and coherent scattering). Dynamic experiments require either laser or magnetic field pulses to excite the spin system followed by x-ray probe in the time domain from nano- to femtosecond delay times. In this temporal range, the demagnetization/remagnetization dynamics and magnetization precession in a number of magnetic materials (metals, alloys, and magnetic multilayers) can be probed in an element specific manner. We demonstrate here the capabilities of the system to host a variety of experiments, featuring ALICE as one of the most versatile and demanded instruments at the Helmholtz Center in Berlin-BESSY II synchrotron center in Berlin, Germany.
Authors:
 [1] ;  [2] ; ; ; ;  [1] ; ; ;  [3]
  1. Institute for Condensed Matter Physics, Ruhr-Universität Bochum, 44780 Bochum (Germany)
  2. (Germany)
  3. Helmholtz-Zentrum-Berlin for Materials and Energy, 12489 Berlin (Germany)
Publication Date:
OSTI Identifier:
22392534
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BESSY STORAGE RING; DEMAGNETIZATION; DESIGN; MAGNETIC MATERIALS; NANOSTRUCTURES; SOFT X RADIATION; SPECTROMETERS; SPECTROSCOPY; SYNCHROTRON RADIATION; SYNCHROTRONS; X-RAY DIFFRACTION