Shen L, Wang MX, Sun SC, Jiang J, Xu X, Zhang T, Zhang QH, Lv YY, Yao SH, Chen YB, Lu MH, Chen YF, et alAugust 2017Journal article Journal:Journal of Electron Spectroscopy and Related PhenomenaVolume:219, Elsevier, pp.45 - 52No abstract availableKeywords:5108 Quantum Physics , 51 Physical Sciences , 5104 Condensed Matter Physics DOI10.1016/j.elspec.2016.10.007