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Temperature-dependent hyperfine interactions at 111Cd-C complex in germanium

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Abstract

The temperature dependent nuclear hyperfine interaction of 111Cd-carbon complex in germanium has been studied using the perturbed γ–γ angular correlation (PAC) method. The parameters of the hyperfine interaction representing substitutional carbon–cadmium complex in germanium (ν Q1=207(1) MHz (η=0.16)) shows dependence on temperature. The formation and thermal stability of the complex has been reported by the same author earlier. It was found in this study that the quadrupole coupling constant of the interaction increases at sample temperature below 293 K. The results are encouraging toward better understanding of the complex in the host matrix.

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Acknowledgements

The author would like to acknowledge the Helmholtz-Institut für Strahlen-und Kernphysik (HISKP) of the University of Bonn (Germany) for conducting the experiment. He thanks members of the material science research group of the HISKP for the constructive suggestions in the preparation of this work.

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  1. School Chemistry & Physics, University of Kwazulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, 3209, South Africa

    Genene Tessema Mola

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  1. Genene Tessema Mola
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Correspondence to Genene Tessema Mola.

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Mola, G.T. Temperature-dependent hyperfine interactions at 111Cd-C complex in germanium. Appl. Phys. A 112, 835–838 (2013). https://doi.org/10.1007/s00339-012-7476-3

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