Electrical conduction in manganese tungstate |
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Authors: | R Bharati RA Singh BM Wanklyn |
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Institution: | Department of Physics, University of Gorakhpur, Gorakhpur 273001, India;Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, England |
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Abstract: | The a.c. and d.c. electrical conductivity and thermoelectric power of a single crystal of MnWO4 are reported in the temperature range 300–1200 K. It has been found that the dominant charge carriers are holes over the entire temperature range studied. A break in the log σ-() curve occurs around 600 K. The activation energies below and above this break temperature have been estimated as 0.53 and 0.57 eV. The charge carrier mobilities have also been estimated. The data have been analysed using the polaronic concept of electrical conduction. |
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