Lifetime Stability and Microstructure Properties of Cr/B4C X-ray Reflective Multilayer Coatings

Autor: Julien E. Rault, Evgueni Meltchakov, Franck Delmotte, Regina Soufli, Christopher C. Walton, Catherine Burcklen, Eric M. Gullikson, Jennifer Rebellato
Přispěvatelé: Laboratoire Charles Fabry / Optique XUV, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Lawrence Livermore National Laboratory (LLNL), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Lawrence Berkeley National Laboratory [Berkeley] (LBNL)
Rok vydání: 2019
Předmět:
Zdroj: Journal of Nanoscience and Nanotechnology
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, 2019, 19 (1), pp.554-561. ⟨10.1166/jnn.2019.16480⟩
ISSN: 1533-4880
DOI: 10.1166/jnn.2019.16480
Popis: International audience; This paper demonstrates that highly reflective Cr/B 4 C multilayer interference coatings with nano-metric layer thicknesses, designed to operate in the soft X-ray photon energy range, have stable reflective performance for a period of 3 years after deposition. The microstructure and chemical composition of layers and interfaces within Cr/B 4 C multilayers is also examined, with emphasis on the B 4 Con -Cr interface where a significant diffusion layer is formed and on the oxide in the top B 4 C layer. Multiple characterization techniques (X-ray reflectivity at different photon energies, X-ray pho-toelectron spectroscopy, transmission electron microscopy, electron diffraction and X-ray diffraction) are employed and the results reveal a consistent picture of the Cr/B 4 C layer structure.
Databáze: OpenAIRE