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zhuzisummer

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[求助] core-level shifts是什么

大家好!有个问题想请教下:请问 用XPS测量得到的core-level shifts是什么。文献是这样表述的Zhu et al. studied the adsorption of NO on Pt(111) using XPS and the core-level shifts (CLSs) of the Pt 4f ,O1s, and N 1s states were obtained as a function of
the NO coverage. In comparison to Pt 4f state of the clean Pt(111)surface, a positive CLS of 0.2 eV was found at low  NO exposures. With increase of the NO exposures, a second peak at higher binding energy of 0.5 eV appears. Meanwhile, two O 1s peaks with difference of 1.7 eV were found and in contrast only one N 1s peak was found.
想请教下什么是core-level shifts。谢谢!
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iamikaruk

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【答案】应助回帖


zhuzisummer(金币+1): 2011-12-09 11:11:46
sunyang1988(金币+1): 谢谢交流 2011-12-09 23:28:36
化学位移,与原子化学环境有关
[img]http://osu.ppy.sh/stat2/iamikaruk-0.png[/img]
2楼2011-12-08 22:41:33
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