MODE SOFTENING AND MODE STIFFENING IN C-60 DOPED WITH ALKALI-METALS

被引：43

作者：

JISHI, RA

DRESSELHAUS, MS

机构：

[1] CALIF STATE UNIV LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90032

[2] MIT,DEPT ELECT ENGN & COMP SCI,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.45.6914

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of charge transfer on the Raman-active modes in C60 crystals doped with alkali metals is considered. In particular, it is shown that, while the charge transfer from the alkali-metal atoms to the C60 molecules leads to mode softening of the tangential vibrational modes, the radial A(g) mode gets stiffer, in agreement with experiments. The mode-stiffening effect is shown to be a consequence of the curvature of the C60 molecule.

引用

页码：6914 / 6918

页数：5

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