Element- and size-dependent electron delocalization in AuNX+ clusters (X = Sc, Ti, V, Cr, Mn, Fe, Co, Ni) -: art. no. 033401

被引：199

作者：

Neukermans, S ^{[1
]}

Janssens, E ^{[1
]}

Tanaka, H ^{[1
]}

Silverans, RE ^{[1
]}

Lievens, P ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.90.033401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigated the stability of gold clusters doped with open 3d-shell atoms (Sc, Ti, V, Cr, Mn, Fe, Co, Ni). Steps, peaks, and odd-even staggering in mass abundance spectra upon photofragmentation provide evidence for enhanced stability for specific cluster sizes. The observed magic numbers are explained in terms of size- and dopant-dependent modifications of the effective mean-field potential within a phenomenological shell-model approach. Element-dependent 3d electron delocalization and odd-even staggering amplitudes are related to the dopant-atom structure.

引用

页数：4

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