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The influence of the dynamics of ionic multiplets onto electronic transport properties of heavy-fermion systems: a semi-phenomenological approach |
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| Authors: | FB Anders M Huth |
| Institution: | Institut für Festk?rperphysik, Technische Universit?t Darmstadt, 64283 Darmstadt, Germany, DE Institut für Physik, Johannes Gutenberg-Universit?t Mainz, 55099 Mainz, Germany, DE |
| Abstract: | We present calculations of the electronic transport properties of heavy-fermion systems within a semi-phenomenological approach to the dynamical mean field theory. In this approach the dynamics of the Hund's rules 4f (5f )-ionic multiplet split in a crystalline environment is taken into account. Within the scope of this calculation we use the linear response theory to reproduce qualitative features of the temperature-dependent resistivity and hall conductivity, the magneto-resistivity and the thermoelectric power typical for heavy-fermion systems. The model calculations are directly compared with experimental results on CeCu 2 Si 2. Received 30 June 2000 and Received in final form 15 December 2000 |
| Keywords: | PACS 71 27 +a Strongly correlated electron systems heavy fermions – 72 10 -d Theory of electronic transport scattering mechanisms – 72 15 Qm Scattering mechanisms and Kondo effect – 73 50 Jt Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects) |
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