Lian Ke-Yan, Sałek Paweł, Jin Mingxing, Ding Dajun
Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China.
J Chem Phys. 2009 May 7;130(17):174701. doi: 10.1063/1.3119310.
We study the formation of plasmon modes of small gold clusters by modeling the excitation spectra. The shape change of the longitudinal mode as a function of cluster size is studied using time-dependent Kohn-Sham theory and Gaussian basis sets. The presence of d electrons in gold atoms affect the plasmon formation process, resulting in a high excitation energy for transverse mode and a complicated spectra profile in general. The transverse mode can still be identified with the help of a frozen-orbital approximation.
