Plasmon excitation by multiply charged Neq+ ions interacting with an Al surface

被引：59

作者：

Niemann, D ^{[1
]}

Grether, M ^{[1
]}

Rosler, M ^{[1
]}

Stolterfoht, N ^{[1
]}

机构：

[1] Hahn Meitner Inst Berlin GmbH, Bereich Festkorperphys, D-14109 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.80.3328

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The emission of low-energy electrons caused by 4.5 keV Neq+ ion impact on an Al surface was measured for incident charge states q = 1-6. The electron spectra exhibit structures near 6.5 and 11 eV which are attributed to the creation of surface and bulk plasmons, respectively. The signature for bulk plasmon disappears for q = 6. It is argued that, for the higher charge states, the bulk plasmons are selectively created below the surface where the resonance condition for plasmon-assisted electron capture is achieved.

引用

页码：3328 / 3331

页数：4

共 27 条

[1] MOLECULAR-ORBITAL MODEL FOR SLOW HOLLOW ATOMS COLLIDING WITH ATOMS IN A SOLID [J].

ARNAU, A ;

KOHRBRUCK, R ;

GRETHER, M ;

SPIELER, A ;

STOLTERFOHT, N .

PHYSICAL REVIEW A, 1995, 51 (05) :R3399-R3402

[2]

Arnau A, 1997, SURF SCI REP, V27, P117

[3] Plasmon-assisted electron emission from Al and Mg surfaces by slow ions [J].

Baragiola, RA ;

Dukes, CA .

PHYSICAL REVIEW LETTERS, 1996, 76 (14) :2547-2550

[4] AUGER-SPECTRA AND CROSS-SECTIONS OF IONIZATION OF L23 SHELL OF MAGNESIUM AND ALUMINUM UNDER PROTON AND HEAVY-ION BOMBARDMENT (10-100 KEV) [J].

BENAZETH, C ;

BENAZETH, N ;

VIEL, L .

SURFACE SCIENCE, 1978, 78 (03) :625-647

[5] ROLE OF PLASMON DECAY IN SECONDARY-ELECTRON EMISSION IN NEARLY-FREE-ELECTRON METALS - APPLICATION TO ALUMINUM [J].

CHUNG, MS ;

EVERHART, TE .

PHYSICAL REVIEW B, 1977, 15 (10) :4699-4715

[6] AUGER-ELECTRON EMISSION FROM SLOW MULTICHARGED IONS NEAR A METAL-SURFACE [J].

DELAUNAY, M ;

FEHRINGER, M ;

GELLER, R ;

VARGA, P ;

WINTER, H .

EUROPHYSICS LETTERS, 1987, 4 (03) :377-382

[7]

Echenique P.M., 1990, SOLID STATE PHYS, V43, P230

[8] MEASUREMENT OF STRUCTURE IN ENERGY-DISTRIBUTION OF SLOW SECONDARY ELECTRONS FROM ALUMINUM [J].

EVERHART, TE ;

SAEKI, N ;

SHIMIZU, R ;

KOSHIKAWA, T .

JOURNAL OF APPLIED PHYSICS, 1976, 47 (07) :2941-2945

[9]

GORNYI NB, 1966, FIZ TVERD TELA+, V8, P1535

[10] Formation and filling of hollow Ne atoms below an Al surface [J].

Grether, M ;

Niemann, D ;

Spieler, A ;

Stolterfoht, N .

PHYSICAL REVIEW A, 1997, 56 (05) :3794-3803

← 1 2 3 →