论文信息 - LETTER TO THE EDITOR: Evidence for photoelectron backscattering by interstitial charge densities

LETTER TO THE EDITOR: Evidence for photoelectron backscattering by interstitial charge densities

The presence of oscillatory structures in the atomic x-ray absorption background is reported for the first time for surface-EXAFS of cN/Cu(100) and N/Cu(110). Systematic analysis of this feature (AXAFS) and comparison to theory yields new information on the electronic structure of the adsorbate - substrate surface bond. Also, angle and temperature dependent analysis of the AXAFS peak provides qualitative information about interstitial charge density distribution.

[1] Wende,et al. Bond length and adsorbate vibrations of (2 x 3)N/Cu(110): A SEXAFS study. , 1996, Physical review. B, Condensed matter.

[2] Filipponi,et al. Comment on "X-ray-absorption fine structure in embedded atoms" , 1996, Physical review. B, Condensed matter.

[3] Filipponi,et al. Atomic background in x-ray absorption spectra of fifth-period elements: Evidence for double-electron excitation edges. , 1995, Physical review. A, Atomic, molecular, and optical physics.

[4] Ankudinov,et al. Multiple-scattering calculations of x-ray-absorption spectra. , 1995, Physical review. B, Condensed matter.

[5] B. Ravel,et al. Analysis of DAFS fine structure and background , 1995 .

[6] Booth,et al. X-ray-absorption fine structure in embedded atoms. , 1994, Physical review. B, Condensed matter.

[7] Lederer,et al. Determination of bond lengths, atomic mean-square relative displacements, and local thermal expansion by means of soft-x-ray photoabsorption. , 1994, Physical review. B, Condensed matter.

[8] Lederer,et al. Structural determination of c(2 x 2)N/Cu(100): A multiple-scattering surface-EXAFS study. , 1993, Physical review. B, Condensed matter.

[9] Boon K. Teo,et al. EXAFS: Basic Principles and Data Analysis , 1986 .

[10] J. Pendry,et al. Atomic origin of structure in EXAFS experiments , 1978 .