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Properties of Ga2-X-Te3 investigated by129I Mössbauer spectroscopy

  • Part I Chemical Structure and Bonding
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Abstract

129I Mössbauer spectroscopy was used to study the properties of129mTe labeled Ga2Te3. and alloyed (Ga2Te3)xAuy and (Ga2Te3)xAsy, sources. A satisfactory fit to the Ga2Te3 spectrum could only be obtained by introducing a distribution in the hyperfine interaction parameters. This is interpreted in favor of the hypothesis of a random distribution of the structural vacancies in the deficit cubic Ga2Te3. The addition of atomic percents of As to the compound did not change significantly the pure Ga2Te3 spectrum. The spectrum of Ga2Te3 alloyed with atomic percents of Au, on the contrary, could be fitted with only one component with a satisfactory narrow linewidth, suggesting that due to Au doping ordering is induced in the stoichiometric vacancies of the Ga2Te3 lattice structure.

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Authors and Affiliations

  1. Physics Department, K. U. Leuven, Celestijnenlaan 200D, B-3030, Leuven, Belgium

    K. Wuyts, G. Langouche & R. E. Silverans

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  1. K. Wuyts
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  2. G. Langouche
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  3. R. E. Silverans
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Wuyts, K., Langouche, G. & Silverans, R.E. Properties of Ga2-X-Te3 investigated by129I Mössbauer spectroscopy. Hyperfine Interact 53, 431–437 (1990). https://doi.org/10.1007/BF02101079

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