Soft X-Ray Absorption Spectra of Metals and Alloys. I. Be, Al, Sb, Bi and Al-Mg Alloys
Soft X-Ray Absorption Spectra of Metals and Alloys. I. Be, Al, Sb, Bi and Al-Mg Alloys
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金属和合金的软 X 射线吸收光谱。
DOI：
10.1143/jpsj.21.2602
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发表时间：
1966
期刊：
影响因子：
--
通讯作者：
T. Oshio
中科院分区：
文献类型：
--
作者：
T. Sagawa;Y. Iguchi;M. Sasanuma;A. Ejiri;S. Fujiwara;M. Yokota;S. Yamaguchi;M. Nakamura;Taizo Sasaki;T. Oshio
用东京核研究所750 MeV电子同步加速器发射的同步辐射作为连续光源，获得了Be、Al、Sb、Bi和Al-Mg合金的软X射线吸收谱。结果表明，铍的K吸收结构与Loucks和Cutler计算的态密度一致。发现铝的L 2，3-吸收光谱中的极大值与铝的K-吸收光谱有一定的对应关系。铝的L 2，3-吸收光谱在边缘上方23 eV处有一个显著的吸收带。这一带与导带的态密度的奇异性无关。提出了一种基于2p-∞d相变延迟的解释。铝镁合金中铝的L 2，3-吸收光谱显示出明显的边缘简并，而镁合金中的L 2，3-吸收边似乎相对未受影响。这一行为与报道的效果相似。
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 -absorption spectrum of aluminum at 23 eV 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 2 p -∞ 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 b...