NEW INTERPRETATION OF PENNING SPECTRA FROM ALKALI-METAL ATOMS CHEMISORBED ON METAL-SURFACES

被引：109
作者：
HEMMEN, R
CONRAD, H
机构：
[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.67.1314
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Penning deexcitation spectra of alkali atoms adsorbed on metals show an intense peak at the Fermi level for coverages around the work-function minimum. This strong electron emission is assigned to the decay of a core-excited negative He- ion created by resonance transition of a substrate electron into the affinity level of the metastable rare-gas atom. The formation of this species also easily provides an explanation for the observed He* singlet-triplet conversion.
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页码：1314 / 1317
页数：4
相关论文
共 22 条
[1]   PENNING IONIZATION ELECTRON-SPECTROSCOPY, UPS AND TPD OF NCCN ON PD(100) [J].
BESENTHAL, K ;
CHIARELLO, G ;
KORDESCH, ME ;
CONRAD, H .
SURFACE SCIENCE, 1986, 178 (1-3) :667-678
[2]  
BOSZO F, 1983, J CHEM PHYS, V78, P4256
[3]   PENNING-IONIZATION ELECTRON-SPECTROSCOPY OF CHEMISORBED CO [J].
CONRAD, H ;
ERTL, G ;
KUPPERS, J ;
WANG, SW ;
GERARD, K ;
HABERLAND, H .
PHYSICAL REVIEW LETTERS, 1979, 42 (16) :1082-1086
[4]  
CONRAD H, 1980, SURF SCI, V100, pL461, DOI 10.1016/0039-6028(80)90372-6
[5]  
GADZUK JW, 1980, PHYS REV B, V22, P2602
[6]   Theory of electrical double layers m adsorbed films [J].
Gurney, RW .
PHYSICAL REVIEW, 1935, 47 (06) :479-482
[7]  
HEMMEN R, IN PRESS
[8]   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
[9]   FORMATION OF FREE-ELECTRON-LIKE RESONANT BANDS FOR ALKALI-METAL OVERLAYERS ON SIMPLE METALS [J].
ISHIDA, H .
PHYSICAL REVIEW B, 1989, 40 (02) :1341-1344
[10]   CHEMICAL TRENDS IN ATOMIC ADSORPTION ON SIMPLE METALS [J].
LANG, ND ;
WILLIAMS, AR .
PHYSICAL REVIEW LETTERS, 1976, 37 (04) :212-215
123