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Interstitial-Atom Trapping and Deuterium Localization at 57Co Impurities in Cu

Published online by Cambridge University Press:  15 February 2011

C.T. Ma
Affiliation:
Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
B. Makowski
Affiliation:
Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
M. Marcuso
Affiliation:
Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
P. Boolchand
Affiliation:
Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
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Abstract

A high purity Cu target foil doped with 57Co and cooled to 80 K has been deuteron irradiated (E = 2 MeV to .5 MeV) using a Van de Graaff accelerator. In-situ Mössbauer spectra of the target were taken as a function of deuterium dose and post irradiation annealing. Two new 57Co sites are observed in addition to the original substitutional site. The new site ‘1’, populated at low temperature following the irradiations is identified with a 57Co impurity atom having Cu-interstitials trapped in its immediate vicinity. The new site ‘2’, populated on annealing the target above 360 K is believed to represent a 57Co impurity having deuterium localized in its vicinity.

Type
Research Article
Copyright
Copyright © Materials Research Society 1981

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References

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