%0 Journal Article
%T Valence band photoemission of Yb2.75C60<br>Yb2.75C60价带光电子能谱
%A Li Hong-Nian
%A He Shao-Long
%A Li Hai-Yang
%A <br>李宏年
%A 何少龙
%A 李海洋
%J 物理学报
%D 2004
%I 
%X Valence-band electronic density of states of Yb2.75C60 thin films was measured by the ultraviolet photoemission spectrum technique. The phase-pure Yb2.75C60 sample was characterized by the C 1s XPS measurements. The result indicates Yb2.75C60 has no Fermi edge and thus is semiconductor. The hybridization between 6s state of Yb and the LUMO band of C60 cannot be considered to be negligible. Some Yb 6s electrons occupy the Yb-C60 covalent band in Yb2.75C60.
%K Yb2
%K 75C60
%K photoemission spectra
%K electronic density of states<br>Yb2.75C60
%K 电子能谱，电子态密度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=7D4DA31BA238E130&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=CA4FD0336C81A37A&sid=5B5B75F4854B8331&eid=002786F01A86D891&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=25