Soft X-Ray Absorption Spectra of Metals and Alloys. : I. Be, Al, Sb, Bi and Al-Mg Alloys

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Soft X-ray absorption spectra of Be, Al, Sb and Bi, and Al-Mg alloys have been obtained by the use of synchrotron radiation emitted from the 750 MeV electron synchrotron at the Institute for Nuclear Study, Tokyo, as a continuous light source. The K-absorption structure of beryllium was found to agree with the density of states calculated by Loucks and Cutler. Some correspondence was found between the maxima in the L_<2,3>-absorption spectrum and the K-absorption spectrum of aluminum. A remarkable band was observed in the L_<2,3>-absorptfon spectrum of aluminum at 23eV above the edge. This band is not attributable to the singularity in the state density of the conduction band. A tentative interpretation based on the delayed onset of transitions 2p-∞d is proposed. The L_<2,3>-absorption spectrum of aluminum in Al-Mg alloy shows a remarkable degeneration of the edge, while the L_<2,3>-absorption edge of magnesium in the same alloy seems relatively unaffected. This behavior is similar to the effect reported by Appleton and Curry on the L_<2,3>-emission edge of both elements in Al-Mg alloy.
社団法人日本物理学会の論文
1966-12-05