DELAYED IONIZATION OF IR-LASER EXCITED C-60

被引:0
|
作者
LOEPFE, M [1 ]
SIEGMANN, HC [1 ]
SATTLER, K [1 ]
机构
[1] UNIV HAWAII,DEPT PHYS & ASTRON,HONOLULU,HI 96822
来源
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1993年 / 26卷
关键词
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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
Using a pulsed CO2 laser we have desorbed C60 clusters from a solid target into an expanding He jet, coupled to a time-of-flight mass spectrometer. We observed self ionization of the excited clusters with a time delay of 120 +/-20 mus. This is large compared to previously reported delays of up to 15 mus after laser excitation with visible or ultraviolet light. We suggest that the delayed ionization is caused by structural isomers of hot C60 clusters differing from the truncated-icosahedron structure.
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页码:S311 / S313
页数:3
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