ELECTRON-ELECTRON AND ELECTRON-PHONON INTERACTIONS IN ALKALI-METAL-DOPED C-60

被引:41
作者
SUZUKI, S
NAKAO, K
机构
[1] Institute of Materials Science, University of Tsukuba
来源
PHYSICAL REVIEW B | 1995年 / 52卷 / 19期
关键词
D O I
10.1103/PhysRevB.52.14206
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate roles of electron-electron and electron-phonon interactions in alkali-metal-doped C-60, A(x)C(60) (A=K, Rb, etc.). It is shown that both interactions are important to observed anomalies. We find that A(2)C(60) and A(4)C(60) are nonmagnetic semiconductors and the-band gaps in these materials are cooperatively formed by the electron-electron and electron-phonon interactions. On the other hand, we find that A(1)C(60), A(3)C(60), and A(5)C(60) are on the border of the metal-insulator transition.
引用
收藏
页码:14206 / 14218
页数:13
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