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Fe-W Supernirrors for Polarizing Neutrons

Published online by Cambridge University Press:  25 February 2011

C. F. Majkrzak ,
D. A. Neumann ,
J. R. D. Copley  and
R. P. Dinardo
C. F. Majkrzak
Affiliation:
Institute for Materials Science and Engineering (IMSE), National Bureau of Standards (NBS), Gaithersburg, MD 20899.
D. A. Neumann
Affiliation:
Institute for Materials Science and Engineering (IMSE), National Bureau of Standards (NBS), Gaithersburg, MD 20899.
J. R. D. Copley
Affiliation:
Department of Physics and Astronomy, University of Maryland, College Park, MD 20742, and IMSE, NBS, Gaithersburg, MD 20899.
R. P. Dinardo
Affiliation:
Instrumentation Division, Brookhaven National Laboratory, Upton, NY 11973.
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Abstract

Thin film bilayers of ferromagnetic Fe and nonmagnetic W have been deposited by sputtering on flat glass substrates according to a sequence of gradually varying bilayer thicknesses which in effect extends the critical angle for external mirror reflection for neutrons of one spin state when the Fe is magnetized in the plane of the film. The measured reflectivity of this Fe-W multilayer system is compared with that of other supermirror polarizers consisting of different materials and layer sequences.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 103 , 1987 , 115
Copyright
Copyright © Materials Research Society 1988

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References

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