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M: Metallphysik
M 14: Postersitzung
M 14.15: Poster
Thursday, March 30, 2000, 15:00–19:00, C
Cluster treatment of the electrical conductivity of disordered and short-range ordered alloys — •Lucian D. Dulca1, John Banhart2, and Gerd Czycholl1 — 1Institut für Theoretische Physik, Universität Bremen, Kufsteiner Str. 2, 28359 Bremen — 2Fraunhofer-Institut für Fertigungstechnik und Materialforschung, Wiener Str. 12, 28359 Bremen
The electrical conductivity of finite, three-dimensional clusters
is calculated using a combination of density functional theory,
multiple scattering theory and the Kubo-Greenwood equation.
Isolated clusters and clusters embedded in a coherent potential
(CPA medium) are considered. Densities of states and electrical
resistivities are calculated for disordered and short-range
ordered alloy systems. Different cluster sizes and two cluster
types, namely spherical and rectangular clusters, are considered.