Abstract

The K emission band of Li and L₂₃ emission bands of Mg and Al have been measured for Li–Mg and Li–Al prepared in a range of concentrations either by coevaporation or by evaporating thin films of Li on Mg(Al) substrates or Mg(Al) on Li substrates. The Li K spectrum is nearly unchanged at all alloy concentrations in the Li–Mg system but broadens and develops a low energy shoulder for large Al concentrations in the Li–Al system. Both Mg and Al L₂₃ spectra are narrower and more peaked at low energy in the equilibrium alloys than in the pure metals. The many-body threshold peaks on the Al and Mg L₂₃ spectra are generally suppressed by alloying with Li, except for low temperature coevaporated Li–Al samples where the peak persists to very Li-rich alloys. Data for a Li₈₀Mg₂₀ alloy are compared with KKR-CPA calculations, and good agreement is found for both the Li K spectrum and the Mg L spectrum.

© 1980 Optical Society of America

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