Thermoelectricity of EuCu{2}(Ge{1-x}Si{x}){2} intermetallics

Details Thermoelectricity of EuCu{2}(Ge{1-x}Si{x}){2} intermetallics Thermoelectricity of EuCu{2}(Ge{1-x}Si{x}){2} intermetallics

2005-12-12

arxiv.org/abs/cond-mat/0512261v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, Proceedings of the SCES 2005 confernece. Physica B (2006), in press

Scientific paper

10.1016/j.physb.2006.01.448

The evolution of the thermopower EuCu{2}(Ge{1-x}Si{x}){2} intermetallics, which is induced by the Si-Ge substitution, is explained by the Kondo scattering of conduction electrons on the Eu ions which fluctuate between the magnetic 2+ and non-magnetic 3+ Hund's rule configurations. The Si-Ge substitution is equivalent to chemical pressure which modifies the coupling and the relative occupation of the {\it f} and conduction states.

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