Electrical conduction in lead-iron glasses

Mandal, S. ; Ghosh, A. (1996) Electrical conduction in lead-iron glasses Journal of Physics: Condensed Matter, 8 (7). pp. 829-836. ISSN 0953-8984

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Official URL: http://iopscience.iop.org/0953-8984/8/7/008

Related URL: http://dx.doi.org/10.1088/0953-8984/8/7/008


Temperature and compositional dependences of electrical conductivity in lead - iron glasses are reported. The experimental results are analysed in the light of existing theories. It has been observed that the electrical conduction in these glass compositions at high temperatures is best described by Mott's phonon-assisted hopping model, while the low-temperature data are consistent with the variable-range hopping model. Hopping at high temperatures occurs in the non-adiabatic regime. The generalized hopping model of Schnakenberg is the best to interpret the temperature dependences of the conductivity and activation energy over the glass compositions studied. Values of the physical parameters obtained by the best fits of the experimental data are consistent with the glass compositions.

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ID Code:11684
Deposited On:13 Nov 2010 14:03
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