Long-lived states of N2-:: Formation, lifetimes, and identity

被引:10
作者
Andersen, T [1 ]
Bertelsen, KA
Raarup, MK
Rud, N
Olsen, J
Veseth, L
机构
[1] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark
[2] Aarhus Univ, Inst Chem, DK-8000 Aarhus C, Denmark
[3] Univ Oslo, Inst Phys, N-0316 Oslo, Norway
来源
PHYSICAL REVIEW A | 1999年 / 60卷 / 05期
关键词
D O I
10.1103/PhysRevA.60.3627
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Long-lived metastable states of N-2(-) are generated by sputtering surfaces of TiN or BN with keV Cs+ ions. The lifetimes of the metastable ions have been measured at the storage ring ASTRID. Experimental investigations of the charge exchange of N-2(+) ions in alkali-metal vapor and theoretical calculations support the conclusion that the long-lived N-2(-) species are sextet states, originating from the attachment of an electron to a quintet state of the N-2 molecule. [S1050-2947(99)07911-1].
引用
收藏
页码:3627 / 3632
页数:6
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