Abstract
Abstract The changes in residual electrical resistivity produced by bombardment with high-energy electrons were measured for CuaAu and CuAu ordered alloys as a function of electron energy ranging from 0.4 to 2.5 MeV. The irradiations were performed at 20 K. The production curves are analysed using a displacement model for diatomic materials and the following values are found for the average displacement threshold energies: ≃24 eV for Cu and ≃18 eV for Au atoms in both alloys. Approximate values for the resistivities of Frenkel pairs are estimated as: P FPCu≃p FPAu≃5 μω cm/at %.
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