Time-Dependent Density-Functional Calculations for Optical Spectra of Na2 and Na4 Clusters

• Published in: Communications in theoretical physics Vol. 47; no. 5; pp. 901 - 904
• Main Authors: Yan-Ping, Zhang, Feng-Shou, Zhang, Ke-Lai, Meng, Guo-Qing, Xiao
• Format: Journal Article
• Language: English
• Published: IOP Publishing 15.05.2007; Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, China; Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000,China; Graduate School of the Chinese Academy of Sciences, Beijing 100049, China%Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000,China; Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China%Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000,China
• Subjects: optical response of cluster; time-dependent local density approximation
• ISSN: 0253-6102
• DOI: 10.1088/0253-6102/47/5/027

O41; With the frame of the time-dependent local density approximation, an efficient description of the optical response of clusters has been used to study the photo-absorption cross section of Na2 and Na4 clusters. It is shown that our calculated results are in good agreement with the experiment. In addition, our calculated spectrum for the Na4cluster is in better agreement with experiment than the GW absorption spectrum.