GENERATION AND PHOTOIONIZATION OF COLD NAN CLUSTERS - N TO 200

被引:60
作者
HONEA, EC [1 ]
HOMER, ML [1 ]
PERSSON, JL [1 ]
WHETTEN, RL [1 ]
机构
[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024
关键词
D O I
10.1016/0009-2614(90)85218-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Featureless abundance distributions are found for sodium atomic clusters in a cold He flowstream by laser ablation, demonstrating that the "magic number" ledges observed previously from oven-beam experiments are caused by high cluster temperatures. The utility of the cold pulsed beams indicated here by experiments on photoionization and photofragmentation properties, including ionization potential estimates for n as large as 137. Electronic and chemical measurements on cold alkali metal clusters in beams or flowing gases will permit critical tests of the electronic shell model. © 1990.
引用
收藏
页码:147 / 154
页数:8
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