%0 Journal Article
%T Time-Dependent Local Density Approximation Calculations for Absorption Spectra of Small Carbon Clusters
%A BAI Yu-Lin
%A CHENG Xiao-Hong
%A CHENG Yan
%A CHEN Xiang-Rong
%A YANG Xiang-Dong
%A <br>白玉林
%A 程晓洪
%A 程艳
%A 陈向荣
%A 杨向东
%J 中国物理快报
%D 2004
%I 
%X Absorption spectra for Cn clusters (n=2--8) are calculated using an adiabatic time-dependent density functional formalism within the local density approximation (TDLDA). We compare the calculated spectra with those computed using a simple local density approximation approach. It is readily observed that the TDLDA spectra display a significant blue shift with respect to the Kohn--Sham eigenvalue spectra. The calculated spectra exhibit a variety of features that can be used for comparison against future experimental investigations. We also obtain a significant threshold absorption, which can distinguish different ground states of the carbon clusters.
%K 36
%K 40
%K -c
%K 36
%K 20
%K Kd
%K 71
%K 15
%K Mb
%K 71
%K 35
%K Cc<br>吸收光谱
%K 碳丛聚
%K 局部密度
%K 近似计算
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=BD96E9DB9CBC186047595B9DDB3FD3F1&yid=D0E58B75BFD8E51C&vid=659D3B06EBF534A7&iid=59906B3B2830C2C5&sid=469954E24DF51E19&eid=2F687D0B62DA15A6&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=29