Final-state effects in the angle-resolved photoemission extended fine structure of c(2x2)S/Ni(001)

Journal Article · Thu Sep 15 04:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100088a016· OSTI ID:6835573

Huff, W R.A.; Hussain, Z ^[1]; Zheng, Y ^[2]; Shirley, D A ^[3]

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1. Lawrence Berkeley Lab., CA (United States)
2. Lawrence Berkeley Lab., CA (United States) Pennsylvania State Univ., University Park, PA (United States)
3. Pennsylvania State Univ., University Park, PA (United States)

Final-state effects on angle-resolved photoemission extended fine structure (ARPEFS) [chi](k) curves were studied using previously published normal-emission experimental data from the S 1s and S 2p core levels of c(2x2)S/Ni(001). The two [chi](k) curves appeared to be approximately 180[degrees] out of phase, as predicted by Tong and Tang. However, in contrast to the expectations based on plane-wave theory, the Fourier transforms of the experimental S 1s and S 2p data sets are quite different, with a generalized Ramsauer-Townsend splitting present in the 1s but not in the 2p data. Multiple-scattering spherical-wave calculations were carried out to study the final-state effects. On the basis of the calculations, an approximate method for analyzing ARPEFS data from a non-s initial-state using only the higher-l partial wave was proposed and successfully tested with the experimental S 2p ARPEFS data. 25 refs., 5 figs.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6835573
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:37; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ADSORPTION
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
FOURIER TRANSFORMATION
INTEGRAL TRANSFORMATIONS
MATHEMATICAL MODELS
METALS
NICKEL
PHOTOEMISSION
RAMSAUER EFFECT
SECONDARY EMISSION
SORPTION
TRANSFORMATIONS
TRANSITION ELEMENTS