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Ordering and Energetics of Hg Overlayers on Cu(O01)

Published online by Cambridge University Press:  25 February 2011

C.W. Hutchings ,
P.A. Dowben ,
Y.J. Kime ,
W. Li ,
M. Karimi ,
C. Moses  and
G. Vidali
C.W. Hutchings
Affiliation:
Syracuse University, Physics Department, Laboratory of Surface and Low temperature Physics, Syracuse, N.Y. 13244-1130
P.A. Dowben
Affiliation:
Syracuse University, Physics Department, Laboratory of Surface and Low temperature Physics, Syracuse, N.Y. 13244-1130
Y.J. Kime
Affiliation:
Syracuse University, Physics Department, Laboratory of Surface and Low temperature Physics, Syracuse, N.Y. 13244-1130
W. Li
Affiliation:
Syracuse University, Physics Department, Laboratory of Surface and Low temperature Physics, Syracuse, N.Y. 13244-1130
M. Karimi
Affiliation:
Alabama A&M University, Physics Department, Normal, Ala.35762
C. Moses
Affiliation:
Utica College, Physics Department, Utica, N.Y. 13502
G. Vidali
Affiliation:
Syracuse University, Physics Department, Laboratory of Surface and Low temperature Physics, Syracuse, N.Y. 13244-1130
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Abstract

The growth, ordering, and energetics of Hg overlayers on Cu(O01) have been studied using atom beam scattering, LEED and angle-resolved photoemission. Two stable ordered phases have been identified: one phase is a c(2↑2) and the other phase is a higher density square lattice which has a coincidence c(4↑4) structure. A phase diagram has been determined using LEED and atom beam diffraction data for surface temperatures between 180 and 330 K. ABS data suggest out that there is a narrow coexistance region between these two phases. The isosteric heat of adsorption has been determined as a function of coverage.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 159: Symposium C – Atomic Scale Structure of Interfaces , 1989 , 133
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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