Influence of electron–phonon interaction and crystal field on thermal and electrical resistivity in rare earth intermetallics

Krzysztof Durczewski, Zbigniew Gajek () and Jan Mucha
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Krzysztof Durczewski: W. Trzebiatowski Institute of Low temperature and Structure Research, Polish Academy of Sciences
Zbigniew Gajek: W. Trzebiatowski Institute of Low temperature and Structure Research, Polish Academy of Sciences
Jan Mucha: W. Trzebiatowski Institute of Low temperature and Structure Research, Polish Academy of Sciences

The European Physical Journal B: Condensed Matter and Complex Systems, 2020, vol. 93, issue 5, 1-18

Abstract: Abstract The thermal and electrical resistivity of f-electron cubic intermetallic metals with well localized and stable stable f-shells are calculated as functions of the temperature. The interaction of the conduction electron with both acoustic and optical phonons as well as the exchange s–f interaction with the crystal field presence are taken into account by applying the Matthiessen rule on the microscopic level and simple well-founded models of the scattering with the same mathematical method within the Boltzmann equation approach. Derived analytical formulas are successfully used to model existing measurements of temperature dependence of electric and thermal conductivity for DyIn3 and TmIn3 in the paramagnetic phase. Attention was drawn to the possible indeterminacy of some material constants in the absence of indications from sources other than transport measurements, noticeable in our results for TmIn3. Graphical abstract

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1140/epjb/e2020-10061-2

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