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

[21]

NING W, 1986, PHYS REV LETT, V56, P2759

[22] BONDING OF SURFACE-STATES ON W(001) - ALL-ELECTRON LOCAL-DENSITY-FUNCTIONAL STUDIES [J].

OHNISHI, S ;

FREEMAN, AJ ;

WIMMER, E .

PHYSICAL REVIEW B, 1984, 29 (10) :5267-5278

[23] THEORY OF INVERSE PHOTOEMISSION [J].

PENDRY, JB .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (09) :1381-1391

[24] SELF-CONSISTENT ELECTRONIC-STRUCTURE OF SURFACES - SURFACE-STATES AND SURFACE RESONANCES ON W(001) [J].

POSTERNAK, M ;

KRAKAUER, H ;

FREEMAN, AJ ;

KOELLING, DD .

PHYSICAL REVIEW B, 1980, 21 (12) :5601-5612

[25] PHYSICAL PROCESSES IN THE L-CATHODE [J].

SCHAEFER, DL ;

WHITE, JE .

JOURNAL OF APPLIED PHYSICS, 1952, 23 (06) :669-674

[26] PREPARATION AND OXIDATION OF A THIN BA FILM [J].

SHIH, A ;

HAAS, GA ;

MARRIAN, CRK .

APPLIED SURFACE SCIENCE, 1983, 16 (1-2) :93-105

[27] INVERSE PHOTOEMISSION FROM METAL-SURFACES [J].

SMITH, NV ;

WOODRUFF, DP .

PROGRESS IN SURFACE SCIENCE, 1986, 21 (04) :295-370

[28] ADSORBATE-INDUCED SHIFTS OF ELECTRONIC SURFACE-STATES - CS ON THE (100) FACES OF TUNGSTEN, MOLYBDENUM, AND TANTALUM [J].

SOUKIASSIAN, P ;

RIWAN, R ;

LECANTE, J ;

WIMMER, E ;

CHUBB, SR ;

FREEMAN, AJ .

PHYSICAL REVIEW B, 1985, 31 (08) :4911-4923

[29] The evaporation of atoms, ions and electrons from caesium films on tungsten [J].

Taylor, JB ;

Langmuir, I .

PHYSICAL REVIEW, 1933, 44 (06) :0423-0458

[30] ALL-ELECTRON LOCAL DENSITY FUNCTIONAL-STUDY OF METALLIC MONOLAYERS .2. ALKALINE-EARTH METALS [J].

WIMMER, E .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1984, 14 (03) :681-690

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