Direct Three-Dimensional Patterson Inversion of Low-Energy Electron DiffractionI(E)Curves

Abstract

A Patterson-like scheme is proposed for direct inversion of the conventional low-energy electron diffraction (LEED) intensity versus energy I͑E͒ curves, which is in contrast with the previously suggested holographic scheme. Using the Si͑111͒-͑7 3 7͒ and Si͑113͒-͑3 3 2͒ surfaces as examples, high quality three-dimensional images, with a resolution better than 0.5 Å, of both surface atoms and bulk atoms are obtained from the direct Patterson inversion of LEED-I͑E͒ curves with the integralenergy phase-summing method.

Structure analysis of thin iron-silicide film from φ-scan RHEED Patterson function

“…Recently there have been a few papers devoted to the direct extraction of structure information from the LEED intensities by means of PF calculation [5][6][7]. However, the electron multiple scattering, involved in the LEED [8], gives rise to the artifacts on the PF map.…”

Intracavity laser spectroscopy by using a Fe2+:ZnSe laser

“…Low-energy electron diffraction (LEED) PF determination dates back to the work of Adams and Landman [2], who focused on the specular beam. Extension of the method to cover other diffracted beams at normal incidence was carried out by Chang et al [3], with very encouraging results. Recently, Wu and Tong [4] applied the method to full beam sets at multiple incidence angles.…”

Evaluation of the small-cone variable axis method in the holographic analysis of Kikuchi electron-diffraction data

“…It has been used with photoelectron diffraction, 1 low-energy electron diffraction (LEED), 2-4 diffuse LEED, [4][5][6] Kikuchi electron diffraction, [7][8][9][10][11][12][13][14][15][16][17][18][19][20] and Kikuchi positron diffraction. It has been used with photoelectron diffraction, 1 low-energy electron diffraction (LEED), 2-4 diffuse LEED, [4][5][6] Kikuchi electron diffraction, [7][8][9][10][11][12][13][14][15][16][17][18][19][20] and Kikuchi positron diffraction.…”