Phonon drag resistivity of potassium |
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Authors: | Manashi Roy |
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Institution: | (1) Tata Institute of Fundamental Research, 400005 Bombay |
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Abstract: | The phonon drag resistivity for potassium is calculated by solving the Boltzman equations for both the electrons and phonons
as opposed to the conventional method of Ziman where the phonon equation is not considered. By an application of the Schwartz
inequality we can show that the drag resistivity in the present formalism is larger than that obtained by the conventional
method. We substantiate this result by numerical calculation for potassium at very low temperatures, using a realistic phonon
spectrum obtained from inelastic neutron scattering data.
Parts of this paper were presented as partial fulfilment for a Ph.D. degree at Cornell University. The work was partially
supported by CSIR funding. |
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Keywords: | Phonon drag alkali metal electrical resistivity transport coefficient |
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