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Ion mixing and thermochemical properties of tracers in Ag

Ma, E. and Kim, S.-J. and Nicolet, M.-A. and Averback, R. S. (1988) Ion mixing and thermochemical properties of tracers in Ag. Journal of Applied Physics, 63 (7). pp. 2449-2451. ISSN 0021-8979.

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Very thin films of Ni, Ta, W, Pb, and Bi in a Ag matrix were irradiated at 77 K with 330 keV Kr ions at doses from 3 to 7×10^15 ions/cm^2 and analyzed at room temperature by backscattering of 1.9 MeV He + . The measured mixing efficiencies, Dt/phiFD, for the various tracers correlate with their respective tracer impurity diffusion coefficients and impurity-vacancy binding energies in Ag. The results concur with previous ones with a Cu matrix and further support the idea that the parameters that are important for thermal diffusion are also important for ion mixing in a thermal spike.

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Additional Information:© 1988 American Institute of Physics. We are grateful to R. Gorris at Caltech for technical assistance. This work was supported at Caltech by The Office of Naval Research under Contract No. N00014-84-K-0275 and at the University of Illinois by the Department of Energy under Contract No. DEAC02-76ER01198.
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Deposited On:22 Dec 2005
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