Onset of metallic behavior in magnesium clusters

被引：149

作者：

Thomas, OC ^{[1
]}

Zheng, WJ ^{[1
]}

Xu, SJ ^{[1
]}

Bowen, KH ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.89.213403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the photoelectron spectra of mass-selected magnesium cluster anions, Mg-n(-), over the size range, n = 3-35. Their s-p band gaps were observed to close at n = 18, signaling the onset of metallic behavior. Electronic shell structure was implicated by gap "reopenings" and mass spectral magic numbers. Complementary calculations are presented in the companion paper [P. H. Acioli and J. Jellinek, Phys. Rev. Lett. 89, 213402 (2002)].

引用

页数：4