Automatisation de la mesure des propriétés de transport électronique d'alliages métalliques liquides : étude des alliages or-polyvalents (Au-Ga, Au-Ge, Au-In, Au-Sb)

Abstract : The aim of this thesis is to study the transport properties of liquid noble métal-polyvalent alloys inwich the magnetic susceptibility shows a minimum in the gold rich side virsus the concentration. We have measured the electrical resistivity evolution as a function of the position of the polyvalent metal in the periodic table. The resistivity has been calculated using the phases shifts n (EF). Our calculation is based on two possible exchange tratement (Slater and Kohn-sham). We improved our results in taking into acount the energy dependence of phase shifts and using the Fermi energy obtained by a fit on the experimentals resisitivities of pure metals. A progress in theorical results are possible with some investigations in the phase shifts calculations and the Fermi energy determination
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Mohammed El Bakkali Taheri. Automatisation de la mesure des propriétés de transport électronique d'alliages métalliques liquides : étude des alliages or-polyvalents (Au-Ga, Au-Ge, Au-In, Au-Sb). Autre. Université Paul Verlaine - Metz, 1994. Français. ⟨NNT : 1994METZ060S⟩. ⟨tel-01751991⟩

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