COLLECTIVE ELECTRONIC EXCITATIONS IN C-60 CLUSTERS

被引：47

作者：

BULGAC, A ^{[1
]}

JU, NJ ^{[1
]}

机构：

[1] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.46.4297

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The large number of active electrons in a C60 cluster and the strong Coulomb interaction among them leads to a rich spectrum of collective states. States with total angular momentum up to L = 8hBAR have a strong collective character. The equivalent of both pi and sigma-plasmons in graphite are predicted. In the low-energy region a strong dynamical screening is obtained, in good agreement with measured absorption spectra. The theoretical results compare very well with photoexcitation and electron-energy-loss-spectroscopy data on gas targets in the high-energy domain.

引用

页码：4297 / 4300

页数：4

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