Abstract
Electronic structure results are presented for the heavy fermion compound CeCu2Ge2. The main focus of the present paper is interplay of Kondo effect and antiferromagnetic instability. We examine properties such as the dispersion of the conduction states and the Fermi surface topology. Electronic band structure calculations are compared treating the Ce 4f electron as localized (atomic-like) and as itinerant (band-like). The results suggest that the incipient Kondo effect as reflected in the transfer of f spectral weight to the low-energy regime is important for the formation of the observed long-range magnetic order.
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