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

共 21 条

[1] Electron binding energies of anionic magnesium clusters and the nonmetal-to-metal transition [J].

Acioli, PH ;

Jellinek, J .

PHYSICAL REVIEW LETTERS, 2002, 89 (21) :213402-213402

[2] Metallic evolution of small magnesium clusters [J].

Akola, J ;

Rytkönen, K ;

Manninen, M .

EUROPEAN PHYSICAL JOURNAL D, 2001, 16 (1-3) :21-24

[3] PROBING THE TRANSITION FROM VANDERWAALS TO METALLIC MERCURY CLUSTERS [J].

BRECHIGNAC, C ;

BROYER, M ;

CAHUZAC, P ;

DELACRETAZ, G ;

LABASTIE, P ;

WOLF, JP ;

WOSTE, L .

PHYSICAL REVIEW LETTERS, 1988, 60 (04) :275-278

[4] SIZE DEPENDENCE OF INNER-SHELL AUTOIONIZATION LINES IN MERCURY CLUSTERS [J].

BRECHIGNAC, C ;

BROYER, M ;

CAHUZAC, P ;

DELACRETAZ, G ;

LABASTIE, P ;

WOSTE, L .

CHEMICAL PHYSICS LETTERS, 1985, 120 (06) :559-563

[5] Direct observation of band-gap closure in mercury clusters [J].

Busani, R ;

Folkers, M ;

Cheshnovsky, O .

PHYSICAL REVIEW LETTERS, 1998, 81 (18) :3836-3839

[6] Three attempts and one success in addressing the bandgap closure in mercury clusters [J].

Busani, R ;

Folkers, M ;

Cheshnovsky, O .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1999, 79 (09) :1427-1436

[7] Electron delocalization in magnesium clusters grown in supercold helium droplets [J].

Diederich, T ;

Döppner, T ;

Braune, J ;

Tiggesbäumker, J ;

Meiwes-Broer, KH .

PHYSICAL REVIEW LETTERS, 2001, 86 (21) :4807-4810

[8] SHELL STRUCTURE AND S-P HYBRIDIZATION IN SMALL ALUMINUM CLUSTERS [J].

GANTEFOR, G ;

EBERHARDT, W .

CHEMICAL PHYSICS LETTERS, 1994, 217 (5-6) :600-604

[9] TRANSITION TO PLASMON-LIKE ABSORPTION IN SMALL HG CLUSTERS [J].

HABERLAND, H ;

VONISSENDORFF, B ;

JI, YF ;

KOLAR, T .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3212-3215

[10] Magnesium clusters: Structural and electronic properties and the size-induced nonmetal-to-metal transition [J].

Jellinek, J ;

Acioli, PH .

JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (45) :10919-10925

← 1 2 3 →