PHOTOABSORPTION SPECTRA OF CSNO AND CSN CLUSTERS

被引:22
|
作者
FALLGREN, H
BROWN, KM
MARTIN, TP
机构
[1] GOTHENBURG UNIV,S-41296 GOTHENBURG,SWEDEN
[2] MAX PLANCK INST FESTKORPERFORSCH,HEISENBERGSTR 1,W-7000 STUTTGART 80,GERMANY
关键词
D O I
10.1007/BF01448260
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Photoabsorption spectra of several CS(N + 2)O and Cs(N) clusters were obtained by means of laser-induced beam-depletion techniques. The strong absorption of clusters with N greater-than-or-equal-to 3 in the near infrared indicates that collective motion might play an important role. Dipole transitions between molecular orbitals, enhanced by plasmon oscillations, generate remarkably distinct spectra for (a) closed-shell clusters at N = 8 and (b) geometrically symmetric clusters like Cs6O and Cs14O.
引用
收藏
页码:81 / 84
页数:4
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