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Optical Second Harmonic Generation from Surface Segregants and Adsorbed Oxygen on an Fe-18Cr-3Mo (110) Surface

Published online by Cambridge University Press:  25 February 2011

J. C. Hamilton ,
R. J. Anderson  and
G. W. Foltz
J. C. Hamilton
Affiliation:
Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94550
R. J. Anderson
Affiliation:
Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94550
G. W. Foltz
Affiliation:
Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94550
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Abstract

Optical second harmonic generation is a new surface diagnostic applicable both in ultra-high vacuum and ambient environments and capable of examining gas-solid, liquid-solid and solid-solid interfaces. Studies of surface segregation of chromium and nitrogen on Fe-18Cr-3Mo(II0) single crystal surfaces in ultra-high vacuum are described. Major increases in second harmonic intensity generated by 700 nm excitation at the surface are seen upon heating to temperatures at which chromium and nitrogen cosegregate. Adsorption of oxygen has also been studied on this surface. Second harmonic generation shows promise in providing structural and electronic information for surfaces and interfaces in a wide variety of environments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 83: Symposium J – Physical and Chemical Properties of Thin Metal Overlayers and Alloy Surfaces , 1986 , 251
Copyright
Copyright © Materials Research Society 1987

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References

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