Radial surface segregation in free heterogeneous argon/krypton clusters

被引：37
|
作者：
Lundwall, M
Tchaplyguine, M
Öhrwall, G
Feifel, R
Lindblad, A
Lindgren, A
Sörensen, S
Svensson, S
Björneholm, O
机构：
[1] Univ Uppsala, Dept Phys, SE-75121 Uppsala, Sweden
[2] Lund Univ, Max Lab, SE-22100 Lund, Sweden
[3] Lund Univ, Inst Phys, Dept Synchrotron Radiat Res, SE-22100 Lund, Sweden
来源：
CHEMICAL PHYSICS LETTERS | 2004年 / 392卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2004.05.111
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：
Free clusters produced by a co-expansion of argon and krypton have been studied by means of core level photoelectron spectroscopy. In this study we have determined: (i) the produced clusters are heterogeneous; (ii) the radial distribution of the two atomic species in the cluster differs. The proposed structure model places the majority of the krypton atoms in the bulk, leaving the argon atoms to be found more frequently on the cluster surface. The suggested structure is qualitatively discussed using the cohesive energies of the two-components. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：433 / 438
页数：6
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