C-1S AUTOIONIZATION STUDY OF ELECTRON HOPPING RATES IN SOLID C-60

被引:75
作者
BRUHWILER, PA
MAXWELL, AJ
RUDOLF, P
GUTLEBEN, CD
WASTBERG, B
MARTENSSON, N
机构
[1] IST NAZL FIS MAT,TASC LAB,I-34012 TRIESTE,ITALY
[2] SONY CORP,RES CTR,YOKOHAMA,KANAGAWA 240,JAPAN
[3] CHALMERS UNIV TECHNOL,DEPT PHYS,S-41296 GOTHENBURG,SWEDEN
关键词
D O I
10.1103/PhysRevLett.71.3721
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present C 1s autoionization studies of condensed and Xe matrix-isolated C60 molecules which give direct information on electron hopping rates in solid C60 in the presence of a C 1s vacancy. These rates vary dramatically for the first three C 1s absorption excitation maxima in a pattern consistent with strong electron-electron correlations. Hopping associated with the second excited state involves extramolecular screening comparable to the Mott-Hubbard pseudogap predicted for K3C60, suggesting intramolecular correlations do not dominate electron transport in the alkali fullerides.
引用
收藏
页码:3721 / 3724
页数:4
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