Direct evidence for the nature of core-level photoemission satellites using angle-resolved photoemission extended fine structure

被引:8
作者
Moler, EJ [1 ]
Kellar, SA
Hussain, Z
Chen, YF
Shirley, DA
Huff, WRA
Huang, ZQ
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
[2] Univ Tokyo, Photon Factory, Natl Lab High Energy Phys, Res Ctr Spectrochem, Tsukuba, Ibaraki 305, Japan
[3] Univ Chicago, Dept Chem, Chicago, IL 60637 USA
[4] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA
来源
PHYSICAL REVIEW B | 1997年 / 56卷 / 24期
关键词
D O I
10.1103/PhysRevB.56.16016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Photoemission satellites from several systems have been found to exhibit exactly the same angle-resolved photoemission extended fine structure (ARPEFS) as found in the main peaks, when referred to the equivalent photoelectron wave number k for their own photoelectrons. This provides a direct and powerful method for experimentally determining the angular momentum parameters and the intrinsic/extrinsic nature of core-level photoemission satellites. We present ARPEFS satellite data for nitrogen 1s line in c(2 X 2) N-2/Ni(100), the nickel 3p line in clean nickel (111), the carbon 1s lines in (root 3 X root 3)R30 CO/Cu(111) and p2mg(2 X 1)CO/Ni(110), and the cobalt 1s line in p(1 X 1) Co/Cu(100). For the last two cases the "satellite" structure is actually the low-energy tail of a Doniach-Sunjic line shape. The satellite peaks and the tails of the Doniach-Sunjic line shapes exhibit ARPEFS curves that in all cases except one indicate angular-momentum parameters identical to the main peak and an Intrinsic nature. [S0163-1829(97)03648-5].
引用
收藏
页码:16016 / 16020
页数:5
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