LOCAL ADSORBATE-INDUCED EFFECTS ON DYNAMIC CHARGE-TRANSFER IN ION-SURFACE INTERACTIONS

被引:81
作者
KIMMEL, GA
GOODSTEIN, DM
LEVINE, ZH
COOPER, BH
机构
[1] Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca
来源
PHYSICAL REVIEW B | 1991年 / 43卷 / 12期
关键词
D O I
10.1103/PhysRevB.43.9403
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have measured positive-ion survival probabilities for K+ scattered from clean and alkalimetal-adsorbate-covered Cu(100) and Cu(110). As expected from most models of resonant charge transfer, we find that very small coverages of alkali-metal adsorbates on the surface can dramatically decrease the ion survival probability. However, the dependence of the ion survival probability on adsorbate coverage is qualitatively different from that expected on the basis of the adsorbate-induced work-function change. We find that a treatment of the charge transfer based on the spinless Newns-Anderson Hamiltonian explains the data only if the local electrostatic potential of the adsorbate overlayer is included in the calculations.
引用
收藏
页码:9403 / 9412
页数:10
相关论文
共 44 条
  • [1] THE ION FRACTIONS OF 2-10 KEV LITHIUM, SODIUM AND POTASSIUM SCATTERED FROM A COPPER (100) SURFACE
    ALGRA, AJ
    VONLOENEN, E
    SUURMEIJER, EPTM
    BOERS, AL
    [J]. RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1982, 60 (1-4): : 173 - 179
  • [2] [Anonymous], COMMUNICATION
  • [3] VALENCE-ELECTRONIC STRUCTURE OF POTASSIUM ADSORBED ON CU(001) DEDUCED FROM WORK-FUNCTION CHANGE AND ELECTRON-ENERGY-LOSS SPECTROSCOPY
    ARUGA, T
    TOCHIHARA, H
    MURATA, Y
    [J]. PHYSICAL REVIEW B, 1986, 34 (12): : 8237 - 8245
  • [4] LOCALIZED TIME-DEPENDENT PERTURBATIONS IN METALS - FORMALISM AND SIMPLE EXAMPLES
    BLANDIN, A
    NOURTIER, A
    HONE, DW
    [J]. JOURNAL DE PHYSIQUE, 1976, 37 (04): : 369 - 378
  • [5] THEORY OF ELECTRONIC PROCESSES IN ATOM SCATTERING FROM SURFACES
    BRAKO, R
    NEWNS, DM
    [J]. REPORTS ON PROGRESS IN PHYSICS, 1989, 52 (06) : 655 - 697
  • [6] CHARGE-EXCHANGE IN ATOM-SURFACE SCATTERING - THERMAL VERSUS QUANTUM-MECHANICAL NON-ADIABATICITY
    BRAKO, R
    NEWNS, DM
    [J]. SURFACE SCIENCE, 1981, 108 (02) : 253 - 270
  • [7] PENNING-IONIZATION ELECTRON-SPECTROSCOPY OF CHEMISORBED CO
    CONRAD, H
    ERTL, G
    KUPPERS, J
    WANG, SW
    GERARD, K
    HABERLAND, H
    [J]. PHYSICAL REVIEW LETTERS, 1979, 42 (16) : 1082 - 1086
  • [8] ANALYTIC APPROACH TO CHARGE-TRANSFER DURING ATOM-SURFACE SCATTERING
    DORSEY, AT
    JACOBSEN, KW
    LEVINE, ZH
    WILKINS, JW
    [J]. PHYSICAL REVIEW B, 1989, 40 (05): : 3417 - 3420
  • [9] COMPLEX CO POTASSIUM INTERACTIONS ON CU(100) - AN ELECTRON-ENERGY LOSS, THERMAL-DESORPTION, AND WORK FUNCTION STUDY
    DUBOIS, LH
    ZEGARSKI, BR
    LUFTMAN, HS
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (02) : 1367 - 1375
  • [10] THEORY OF ATOM-METAL INTERACTIONS .I. ALKALI ATOM ADSORPTION
    GADZUK, JW
    [J]. SURFACE SCIENCE, 1967, 6 (02) : 133 - &