The resistivities of liquid Mg-Al, Na-Cs, Ni-Ce, Li-Cd and Mg-Cd alloys were calculated. The Faber-Ziman diffraction model and the Morgan-Howson-Saub '2k(F)' scattering model were used in calculations. The results obtained within these two models for the same alloy and with use of the same set of parameters differ substantially, even for alloys that are not highly resistive. It is possible in principle to achieve good agreement with experiment by means of each of these two models; however we suggest that the '2k(F)' scattering model is the appropriate method of calculation of the electrical resistivity for liquid alloys because the quantum interference effects should always be taken into account.
New method of calculation of the electrical resistivity of liquid and amorphous alloys is presented. The method is based on the Morgan-Howson-Saub (MHS) model but the pseudopotentials are replaced by the scattering matrix operators. The Fermi energy is properly determined by the accurate values of the phase shifts. The model depends on a very small number of universal parameters and gives stable results. The calculated values of the resistivity agree well with available experimental data for a substantial number of binary alloys. Moreover, the results for some ternary alloys were also obtained.
eqr niversity of iene nd ehnologyD pulty of hysis nd epplied gomputer ieneD heprtment of olid tte hysisD lF eF wikiewiz QHD QHEHSW urkowD olnd (Received May 6, 2014) heoretil investigtions of the in)uene of hydrogen ontents on the eletril resistivity of morphous metlli lloys hve een rried outF e hve mde use of our method of lultions of the eletril resistivity of disordered systems sed on the ground of worgn!rowson!u nd ivns modelsF yur method is fully quntumD inludes multiple sttering e'ets nd uses the sttering mtrix opertors for desriing the eletron! ion intertionsF he model gives good greement with experiment for mny inry systems nd should work for ternry systems s wellD thus we performed lultions with hydrogen s one of the omponents of ternry lloyF he results of our lultions show tht the resistivity should inrese with hydrogen onentrtionF ome experimentl dt on(rm this preditionF hysX IHFIPTWQGehysoleFIPTFIPWT egX UPFISFgzD UPFISFmD UPFISFn
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