Anomalies in transition metal conductivity: Strong evidence for Fermi-velocity dominance

Meded, VelimirUppsala universitet,Kondenserade materiens teori (Fysik IV),Condensed Matter Theory Group, Department of Physics, Uppsala University, P.O. Box 530, SE-751 21 Uppsala, Sweden, Forschungszentrum Karlsruhe, Institut für Nanotechnologie, Postfach 3640, D-76021 Karlsruhe, Germany (author)

Anomalies in transition metal conductivity : Strong evidence for Fermi-velocity dominance

We have calculated the conductivities of the 3d, 4d, and 5d transition metals by using a quasiclassical Boltzmann approach which utilizes self-consistent energy bands. Electron scattering is characterized by a constant scattering strength which treats all sources of resistivity on an equal footing. This results in a single parameter theory with which we are able to reproduce, qualitatively, trends and anomalies in conductivity throughout the transition metal series. By the choice of an appropriate scattering strength at each temperature, we are able to reproduce these trends over the experimentally observable temperature range of 10-1000 K. In particular, the well known dip in conductivity at the middle of the series, especially pronounced for Mn, is understood in terms of the host electronic structure.

Dziekan, ThomasUppsala universitet,Kondenserade materiens teori (Fysik IV),Condensed Matter Theory Group, Department of Physics, Uppsala University, P.O. Box 530, SE-751 21 Uppsala, Sweden (author)
Mirbt, SusanneUppsala universitet,Kondenserade materiens teori (Fysik IV),Condensed Matter Theory Group, Department of Physics, Uppsala University, P.O. Box 530, SE-751 21 Uppsala, Sweden(Swepub:uu)susamirb (author)
Zahn, P.Department of Physics, Martin Luther University Halle, D-06099 Halle/Saale, Germany, Institute of Theoretical Physics, TU Dresden, D-01062 Dresden, Germany (author)
Shallcross, SamLinköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi(Swepub:liu)samsh23 (author)
Uppsala universitetKondenserade materiens teori (Fysik IV) (creator_code:org_t)

In:Physical Review B. Condensed Matter and Materials Physics77:15, s. 155123-1098-01211550-235X

By the author/editor: Meded, Velimir; Dziekan, Thomas; Mirbt, Susanne; Zahn, P.; Shallcross, Sam

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