束缚态与虚束缚态共存的浅核-价态光谱研究
Coexistence of Bound and Virtual-bound States in Shallow-core to Valence Spectroscopies
摘要：
我们发展了当多重态扩展大于芯-空穴吸引时的浅芯-价激发理论，例如，如果核轨道和价轨道具有相同的主量子数。这导致从束缚态到虚束缚态激发态的交叉，随着能量的增加，偶极和高阶多极跃迁之间的差异很大，如在非弹性X射线散射中所观察到的。该理论对于从强关联过渡金属、稀土和锕系元素的x射线光谱中获取基态信息具有重要意义。
英文摘要：
We develop the theory for shallow-core to valence excitations when the multiplet spread is larger than the core-hole attraction, e.g., if the core and valence orbitals have the same principal quantum number. This results in a cross-over from bound to virtual-bound excited states with increasing energy and in large differences between dipole and high-order multipole transitions, as observed in inelastic x-ray scattering. The theory is important to obtain ground state information from x-ray spectroscopies of strongly correlated transition metal, rare-earth and actinide systems.
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