The relative photoion yield in the 4d photoionization of Eu+has been measured with an energy resolution of E/ΔE≃820. The obtained spectrum shows that the 4d 'giant resonance' of Eu+is not a single peak but consists of many resonances. The result is compared with a recent theoretical calculation and our previous result which has been measured with lower resolution. The calculation well reproduces the experimental result in the region of E≥140 eV, while some peaks are not corresponding in lower energy region. © 2004 Elsevier B.V. All rights reserved.
Kojima, T. M., Chen, F., Kitajima, M., Koizumi, T., Nakai, Y., Yamaoka, H., & Watanabe, N. (2005). Observation of resonance structures in 4d photoionization of Eu+. In Journal of Electron Spectroscopy and Related Phenomena (Vol. 144–147, pp. 71–74). https://doi.org/10.1016/j.elspec.2005.01.209