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Proceedings Paper

Selection, growth, and characterization of materials for MBE-produced x-ray optics
Author(s): Patrick A. Kearney; Jon M. Slaughter; Charles M. Falco
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Paper Abstract

Molecular Beam Epitaxy (MBE) is capable of producing a variety of high purity, epitaxial multilayer films with well controlled interfaces. However, the conditions necessary for MBE growth somewhat restricts the choice of useful materials. We discuss our material selection procedure for MBE-deposited x-ray optical multilayer materials. This procedure takes into account factors such as chemical reactivity, thermal stability, and lattice match,. as well as the maximum theoretical reflectivity obtainable with a given material pair. The present work consists of a comprehensive study of elemental films, and a more detailed consideration of a few select compound systems. Both the precise deposition contrOl possible with MBE, as well as the many in situ characterization methods, combine to allow a high degree of control over the formation of interfaces. Our principle MBE system for x-ray optics contains in situ Reflection High Energy Electron Diffraction (RHEED), Low Energy Electron Diffraction (LEED), Auger Electron Spectroscopy (AES), X-Ray Photoelectron Spectroscopy (XPS) and Ion Scattering Spectroscopy (ISS). An overview of the techniques used to analyze our films be given, including data from our growth of epitaxial CoSi2 absorbing layers on Si (111) using a solid state reaction technique.

Paper Details

Date Published: 1 February 1991
PDF: 7 pages
Proc. SPIE 1343, X-Ray/EUV Optics for Astronomy, Microscopy, Polarimetry, and Projection Lithography, (1 February 1991); doi: 10.1117/12.23174
Show Author Affiliations
Patrick A. Kearney, Optical Sciences Ctr./Univ. of Arizona (United States)
Jon M. Slaughter, Optical Sciences Ctr./Univ. of Arizona (United States)
Charles M. Falco, Optical Sciences Ctr./Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 1343:
X-Ray/EUV Optics for Astronomy, Microscopy, Polarimetry, and Projection Lithography

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