玻态PdUSi合金的光学反射率

R. Lapka, G. Leemann, H.-J. Güntherodt
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引用次数: 2

摘要

介绍了几种PdUSi合金的光学反射率测量及其与0 ~ 60 at范围内铀浓度的关系。%是研究对象。u5f波段的影响,以及从5f2到5f3电子构型的变化(从6.6到20at之间开始)。% U),并讨论了加入铀后价带的变化。此外,还比较了Pd60U20Si20的玻璃相和二十面体相。对于二十面体相,u5f态对价带的贡献和结晶效应的发生更为显著。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optical reflectivity of glassy PdUSi alloys

Optical reflectivity measurements of several PdUSi alloys are presented and their dependence on the uranium concentration in the range between 0 and 60 at. % is studied. The effects of the U 5f band, together with the change from the 5f2 to the 5f3 electron configuration (starting between 6.6 and 20 at. % U), and of the changing valence bandwidth on adding uranium are discussed. In addition, the glassy and icosahedral phases of Pd60U20Si20 are compared. For the icosahedral phase, a more prominent contribution of the U 5f states to the valence band as well as the onset of crystalline effects are observed.

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