Spin polarized alkali clusters: Observation of quartet states of the sodium trimer

被引:88
作者
Higgins, J
Ernst, WE
Callegari, C
Reho, J
Lehmann, KK
Scoles, G
Gutowski, M
机构
[1] PACIFIC NW LAB, ENVIRONM MOL SCI LAB, RICHLAND, WA 99352 USA
[2] UNIV GDANSK, DEPT CHEM, PL-80952 GDANSK, POLAND
关键词
D O I
10.1103/PhysRevLett.77.4532
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using helium cluster-isolation spectroscopy we have prepared and characterized the lowest quartet state (1(4)A'(2)) of the sodium trimer. Upon excitation to the 2(4)E' electronic state, laser induced fluorescence excitation and emission spectra have been obtained. With the aid of ab initio calculations, the spectra have been vibronically assigned and new insights on the nonadditivity of van der Waals interactions have been obtained. It is found that approximately 80% of the interaction energy in the 1(4)A'(2) state of Na-3 is due to nonadditive effects.
引用
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页码:4532 / 4535
页数:4
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