论文标题
UTE $ _2 $的核心级光电子光谱研究
Core-Level Photoelectron Spectroscopy Study of UTe$_2$
论文作者
论文摘要
UTE $ _2 $的价状态是由核心级光电光谱研究研究的。 UTE $ _2 $的U $ 4F $核心级频谱的主要峰位置与UB $ _2 $的峰值位置相吻合，UB $ _2 $，这是一种巡回化合物，具有接近$ 5F^3 $配置。但是，UTE $ _2 $的主要峰值比UB $ _2 $的峰值宽，并且在主峰的较高结合能侧观察到卫星结构，这是混合价值铀化合物的特征。这些结果表明，UTE $ _2 $中的U 5 $ F $状态处于混合价状态，其主要贡献$ 5F^3 $配置。
The valence state of UTe$_2$ was studied by core-level photoelectron spectroscopy. The main peak position of the U $4f$ core-level spectrum of UTe$_2$ coincides with that of UB$_2$, which is an itinerant compound with a nearly $5f^3$ configuration. However, the main peak of UTe$_2$ is broader than that of UB$_2$, and satellite structures are observed in the higher binding energy side of the main peak, which are characteristics of mixed-valence uranium compounds. These results suggest that the U 5$f$ state in UTe$_2$ is in a mixed valence state with a dominant contribution from the itinerant $5f^3$ configuration.
