CHARGE-EXCHANGE IN ALKALI CLUSTER COLLISIONS

被引:27
作者
BRECHIGNAC, C [1 ]
CAHUZAC, P [1 ]
CARLIER, F [1 ]
LEYGNIER, J [1 ]
HERTEL, IV [1 ]
机构
[1] UNIV FREIBURG,FAK PHYS,W-7800 FREIBURG,GERMANY
来源
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1990年 / 17卷 / 01期
关键词
34.70.+e; 36.40+d;
D O I
10.1007/BF01437499
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
Collisional charge exchange between mass selected alkali cluster ions and Cs has been studied and cross sections have been determined for the processes Nan+ + Cs and Kn+ + Cs, with n=1-21 and n=1-14, respectively. A strong dependence of the cross sections on the energy defect as well as on cluster size and collision energy is found. The results are analysed by a coupled two state density matrix model, taking account of the relaxation of electronic amplitudes due to interaction with the nuclear motion in the cluster. © 1990 Springer-Verlag.
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页码:61 / 67
页数:7
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