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MA: Magnetismus

MA 26: Electron Theory

MA 26.12: Talk

Thursday, March 30, 2006, 13:00–13:15, HSZ 401

Electronic structure and Fermi Surfaces of Transuranium* Copmounds U$M$Ga$_5$ ($M=$Pd and Pt)* compounds — •Saad Elgazzar, Ingo Opahle, and Manuel Richter — IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany

We report a critical analysis of the electronic structures and de Haas-van Alphen (dHvA) quantities of the heavy-fermion UPdGa$_5$ and UPtGa$_5 $. The electronic structures are investigated {∖it ab initio} on the basis of full-potential band-structure calculations, adopting the fully relativistic formulations in the framework of the local spin-density approximation (LSDA) with and without orbital polarization (OP) corrections. The calculated calculated dHvA quantities are in good agreement with experimental data for both compounds recently published ∖cite{Ikeda}

∖bibitem{Ikeda} S. Ikeda, {∖em et al.}, JPSJ, {∖bf 74} (2005) pp.2277-2281.