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Metals 2016, 6(1), 20; doi:10.3390/met6010020

Probing Interfaces in Metals Using Neutron Reflectometry

1
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2
Materials Science and Engineering, Texas A & M University, College Station, TX 77843, USA
3
MPA-CINT/Los Alamos Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
4
Department of Chemical Engineering, University of California at Davis, Davis, CA 95616, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Klaus-Dieter Liss
Received: 25 November 2015 / Revised: 7 December 2015 / Accepted: 21 December 2015 / Published: 20 January 2016
(This article belongs to the Special Issue Metals Challenged by Neutron and Synchrotron Radiation)
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Abstract

Solid-state interfaces play a major role in a variety of material properties. They are especially important in determining the behavior of nano-structured materials, such as metallic multilayers. However, interface structure and properties remain poorly understood, in part because the experimental toolbox for characterizing them is limited. Neutron reflectometry (NR) offers unique opportunities for studying interfaces in metals due to the high penetration depth of neutrons and the non-monotonic dependence of their scattering cross-sections on atomic numbers. We review the basic physics of NR and outline the advantages that this method offers for investigating interface behavior in metals, especially under extreme environments. We then present several example NR studies to illustrate these advantages and discuss avenues for expanding the use of NR within the metals community. View Full-Text
Keywords: neutron reactor; spallation source; metals; extreme conditions neutron reactor; spallation source; metals; extreme conditions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Demkowicz, M.J.; Majewski, J. Probing Interfaces in Metals Using Neutron Reflectometry. Metals 2016, 6, 20.

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