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Simulation of PAC spectra for spin 5/2 probes diffusing via a simple vacancy mechanism in Cu 3 Au-structured intermetallic compounds

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Abstract

Because of its sensitivity to point defects atomically close to probe nuclei, it is reasonable to expect that perturbed angular correlation (PAC) spectroscopy has the potential to assist in the identification of diffusion mechanisms. It is of interest to characterize under what conditions diffusing defects are visible and how the defects affect relaxation in PAC spectra. This was investigated using a stochastic model to simulate PAC spectra for the special case of non-impurity PAC probes diffusing via a simple vacancy mechanism on the Cu-sublattice in Cu3Au-structured compounds.

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Authors and Affiliations

  1. Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY, 41099, USA

    Harun Muhammed & Matthew O. Zacate

  2. School of Science and Health, Utah Valley University, Orem, UT, 84058, USA

    William E. Evenson

Authors
  1. Harun Muhammed
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  2. Matthew O. Zacate
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  3. William E. Evenson
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Additional information

This work is funded in part by NSF grant DMR 06-06006 (Metals Program) and by KY EPSCoR grant RSF 012-03.

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Muhammed, H., Zacate, M.O. & Evenson, W.E. Simulation of PAC spectra for spin 5/2 probes diffusing via a simple vacancy mechanism in Cu 3 Au-structured intermetallic compounds. Hyperfine Interact 177, 45–49 (2007). https://doi.org/10.1007/s10751-008-9620-1

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  • DOI: https://doi.org/10.1007/s10751-008-9620-1

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