ELECTRONIC SHELL STRUCTURE OF GROUP-IIIA METAL ATOMIC CLUSTERS

被引:227
作者
SCHRIVER, KE
PERSSON, JL
HONEA, EC
WHETTEN, RL
机构
[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,CTR SOLID STATE SCI,LOS ANGELES,CA 90024
关键词
D O I
10.1103/PhysRevLett.64.2539
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Ionization potentials of Aln and Inn clusters (n<80) in supercooled beams have been measured by photoionization spectroscopy. The abrupt leveling near n=5 of the initial linear increase in ionization potentials and the subsequent gradual approach to the classical metallic sphere model are consistent with a simple picture of s-p band hybridization. For n>6, there is clear evidence of electron shell filling, yet substantial deviations from shell-model predictions remain. Crystal-field effects are considered the most probable source of symmetry breaking and give insight to cluster structure. © 1990 The American Physical Society.
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页码:2539 / 2542
页数:4
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