Probing step decoration by grazing-incidence helium scattering

被引:15
作者
Blanc, M [1 ]
Kuhnke, K [1 ]
Marsico, V [1 ]
Kern, K [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Inst Phys Expt, CH-1015 Lausanne, Switzerland
关键词
atom-solid scattering and diffraction elastic; growth; platinum; silver; surface defects;
D O I
10.1016/S0039-6028(98)00561-5
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 describe a method for the in situ study of step decoration modes in vapor-phase epitaxial growth. It is based on the large cross-section of thermal energy He atoms for diffuse scattering exhibited by surface defects. In grazing-incidence scattering geometry, this sensitivity can be used to monitor ordering and growth processes at step edges. We illustrate the method with results for Ag and Pt deposition at the (111) steps on the vicinal Pt(997) surface. (C) 1998 Elsevier Science B.V. Al rights reserved.
引用
收藏
页码:L964 / L969
页数:6
相关论文
共 19 条
  • [1] A NEW TECHNIQUE FOR DECORATION OF CLEAVAGE AND SLIP STEPS ON IONIC CRYSTAL SURFACES
    BASSETT, GA
    [J]. PHILOSOPHICAL MAGAZINE, 1958, 3 (33): : 1042 - &
  • [2] BETHGE H, 1964, SURF SCI, V3, P33
  • [3] BLANC M, UNPUB
  • [4] STRAIN RELIEF AT HEXAGONAL-CLOSE-PACKED INTERFACES
    BRUNE, H
    RODER, H
    BORAGNO, C
    KERN, K
    [J]. PHYSICAL REVIEW B, 1994, 49 (04): : 2997 - 3000
  • [5] A PHOTOEMISSION-STUDY OF THE ADSORPTION OF THE 1ST AND THE 2ND LAYER OF XENON ON PT(332)
    CATHRINE, B
    FARGUES, D
    ALNOT, M
    EHRHARDT, JJ
    [J]. SURFACE SCIENCE, 1991, 259 (1-2) : 162 - 172
  • [6] DIRECT EVIDENCE FOR TERRACE BENDING FROM HE BEAM SCATTERING ON PT(997)
    COMSA, G
    MECHTERSHEIMER, G
    POELSEMA, B
    TOMODA, S
    [J]. SURFACE SCIENCE, 1979, 89 (1-3) : 123 - 132
  • [7] ORIENTATIONAL INSTABILITY OF VICINAL PT SURFACES CLOSE TO (111)
    HAHN, E
    SCHIEF, H
    MARSICO, V
    FRICKE, A
    KERN, K
    [J]. PHYSICAL REVIEW LETTERS, 1994, 72 (21) : 3378 - 3381
  • [8] KOSSEL W, 1927, AKAD WISS GOTTINGEN, P135
  • [9] DIFFRACTION OF HELIUM FROM A STEPPED SURFACE - CU(117) - EXPERIMENTAL-STUDY
    LAPUJOULADE, J
    LEJAY, Y
    PAPANICOLAOU, N
    [J]. SURFACE SCIENCE, 1979, 90 (01) : 133 - 161
  • [10] Discrete row growth at vicinal surfaces
    Marsico, V
    Blanc, M
    Kuhnke, K
    Kern, K
    [J]. PHYSICAL REVIEW LETTERS, 1997, 78 (01) : 94 - 97