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Explanation of Meyer–Neldel rule in the thermally activated a.c. conduction in some chalcogenide glasses using correlated barrier hopping model

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Abstract

We have investigated Meyer–Neldel rule in thermally activated a.c. conduction for a-Se80Te20 and a-Se80Te10M10 (M = Cd, In, Sb) alloys by two different approaches. In the first case, the temperature dependence of a.c. conductivity is studied at different audio frequencies without changing the composition of glassy system. In the second case, the composition itself varies at a particular audio frequency. The results are explained by using well-known correlated barrier hopping model.

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Acknowledgements

We are thankful to the Council of Scientific & Industrial Research (CSIR) for providing financial assistance under major research project [Scheme Number: (03(1177)/10]. We are also thankful to Prof. Ashok Kumar, Physics Department, HBTI, Kanpur, India for his help in a.c. conductivity measurements.

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Authors and Affiliations

  1. Department of Physics, Banaras Hindu University, Varanasi, 221005, India

    N. Chandel & N. Mehta

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  1. N. Chandel
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  2. N. Mehta
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Correspondence to N. Mehta.

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Chandel, N., Mehta, N. Explanation of Meyer–Neldel rule in the thermally activated a.c. conduction in some chalcogenide glasses using correlated barrier hopping model. J Mater Sci 47, 6693–6698 (2012). https://doi.org/10.1007/s10853-012-6611-z

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  • DOI: https://doi.org/10.1007/s10853-012-6611-z

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