Photoinduced plasmon excitations in alkali-metal overlayers

被引：37

作者：

Barman, SR ^{[1
]}

Horn, K

Haberle, P

Ishida, H

Liebsch, A

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

[2] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[3] Nihon Univ, Coll Humanities & Sci, Tokyo 156, Japan

[4] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.57.6662

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Collective surface excitations in alkali-metal overlayers are observed using photoyield spectroscopy. Spectra for Na and K on Al(111) reveal a multipole surface plasmon and bulklike overlayer plasmon. In contrast-Li on Al exhibits only the multipole mode. In the submonolayer regime, all three alkali metals provide evidence for the threshold excitation. Time-dependent density-functional calculations for realistic alkali-metal overlayers agree well with these observations.

引用

页码：6662 / 6665

页数：4

共 29 条

[11]

HOHFELD A, 1989, SURF SCI, V211, P844

[12] IDENTIFICATION OF THE S-DERIVED VALENCE-ELECTRON LEVEL IN PHOTOEMISSION FROM ALKALI-METAL ADLAYERS ON ALUMINUM [J].

HORN, K ;

HOHLFELD, A ;

SOMERS, J ;

LINDNER, T ;

HOLLINS, P ;

BRADSHAW, AM .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2488-2491

[13] ELECTRONIC EXCITATIONS IN THIN ALKALI-METAL LAYERS ADSORBED ON METAL-SURFACES [J].

ISHIDA, H ;

LIEBSCH, A .

PHYSICAL REVIEW B, 1992, 45 (11) :6171-6187

[14]

KIM B, UNPUB

[15] MERCURY SURFACE-PLASMON DISPERSION - EXPERIMENT AND THEORY [J].

KIM, BO ;

LEE, G ;

PLUMMER, EW ;

DOWBEN, PA ;

LIEBSCH, A .

PHYSICAL REVIEW B, 1995, 52 (08) :6057-6066

[16] THEORY OF WORK-FUNCTION CHANGES INDUCED BY ALKALI ADSORPTION [J].

LANG, ND .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (12) :4234-+

[17] SURFACE-PLASMON ENERGY AND DISPERSION ON AG SINGLE-CRYSTALS - REPLY [J].

LEE, G ;

SPRUNGER, PT ;

PLUMMER, EW ;

SUTO, S .

PHYSICAL REVIEW LETTERS, 1991, 67 (22) :3198-3198

[18] POWER ABSORPTION AT METAL-SURFACES [J].

LEE, JT ;

SCHAICH, WL .

PHYSICAL REVIEW B, 1991, 44 (23) :13010-13017

[19] EFFECTS ON PHOTOEMISSION OF THE SPATIALLY VARYING PHOTON FIELD AT A METAL-SURFACE [J].

LEVINSON, HJ ;

PLUMMER, EW ;

FEIBELMAN, PJ .

PHYSICAL REVIEW LETTERS, 1979, 43 (13) :952-955

[20] ELECTRONIC EXCITATIONS IN ADSORBED ALKALI-METAL LAYERS [J].

LIEBSCH, A .

PHYSICAL REVIEW LETTERS, 1991, 67 (20) :2858-2861

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