ANGLE-RESOLVED INVERSE PHOTOEMISSION FROM ONE MONOLAYER OF BA ON W(001)

被引：16

作者：

LAMOURI, A ^{[1
]}

KRAINSKY, IL ^{[1
]}

机构：

[1] NASA,LEWIS RES CTR,21000 BROOKPARK RD,CLEVELAND,OH 44135

来源：

SURFACE SCIENCE | 1992年 / 278卷 / 03期

关键词：

D O I：

10.1016/0039-6028(92)90665-S

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have investigated the physical and electronic properties of one monolayer (ML) of Ba on the W(001) face using low-energy electron diffraction (LEED), work function measurements and angle-resolved inverse photoelectron spectroscopy (ARIPES). It was found that the work function of the W(001) was lowered by approximately 2 eV after adsorption of one ML of Ba. At this coverage an ordered c(2 x 2) adlayer was observed. The ARIPES experimental data taken along the DELTABAR symmetry line of the W(001) surface Brillouin zone (SBZ) indicate strong emission above the Fermi energy (E(F)) dominated by transitions to the Ba d-surface states and a W bulk state.

引用

页码：286 / 290

页数：5

共 33 条

[1] A SIMPLE AND COMPACT SYSTEM FOR COMBINED ANGULAR RESOLVED INVERSE PHOTOEMISSION AND PHOTOEMISSION IN THE VACUUM ULTRAVIOLET [J].

BABBE, N ;

DRUBE, W ;

SCHAFER, I ;

SKIBOWSKI, M .

JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1985, 18 (02) :158-160

[2] SURFACE RESONANCE ON W(100) - EFFECTS OF AU AND CU ADSORPTION [J].

BILLINGTON, RL ;

RHODIN, TN .

PHYSICAL REVIEW LETTERS, 1978, 41 (23) :1602-1605

[3] SELF-CONSISTENT SEMIRELATIVISTIC PSEUDOPOTENTIAL CALCULATION OF THE ENERGY-BANDS, COHESIVE ENERGY, AND BULK MODULUS OF W [J].

BYLANDER, DM ;

KLEINMAN, L .

PHYSICAL REVIEW B, 1983, 27 (06) :3152-3159

[4] ALL-ELECTRON LOCAL-DENSITY-FUNCTIONAL THEORY OF ALKALI-METAL ADSORPTION ON TRANSITION-METAL SURFACES - CS ON MO(001) [J].

CHUBB, SR ;

WIMMER, E ;

FREEMAN, AJ ;

HISKES, JR ;

KARO, AM .

PHYSICAL REVIEW B, 1987, 36 (08) :4112-4122

[5] MOMENTUM-RESOLVED INVERSE PHOTOEMISSION [J].

Dose, V. .

SURFACE SCIENCE REPORTS, 1985, 5 (08) :337-378

[6] UNOCCUPIED SURFACE-STATES ON W(001) AND MO(001) BY INVERSE PHOTOEMISSION [J].

DRUBE, W ;

STRAUB, D ;

HIMPSEL, FJ ;

SOUKIASSIAN, P ;

FU, CL ;

FREEMAN, AJ .

PHYSICAL REVIEW B, 1986, 34 (12) :8989-8992

[7] UNOCCUPIED ELECTRONIC BAND-STRUCTURE OF AN ORDERED POTASSIUM LAYER ON COPPER - CU(111)-(2X2)K [J].

DUDDE, R ;

FRANK, KH ;

REIHL, B .

PHYSICAL REVIEW B, 1990, 41 (08) :4897-4900

[8]

EYINK KG, 1985, APPL SURF SC, V20, P215, DOI 10.1016/0378-5963(85)90082-0

[9] PROPOSED PHYSICAL MODEL FOR THE IMPREGNATED TUNGSTEN CATHODE BASED ON AUGER SURFACE STUDIES OF THE BA-O-W SYSTEM [J].

FORMAN, R .

APPLIED SURFACE SCIENCE, 1979, 2 (02) :258-274

[10] INTERATOMIC AUGER ANALYSIS OF THE OXIDATION OF THIN BA FILMS .2. APPLICATIONS TO IMPREGNATED CATHODES [J].

HAAS, GA ;

SHIH, A ;

MARRIAN, CRK .

APPLIED SURFACE SCIENCE, 1983, 16 (1-2) :139-162

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