NEW EXPERIMENTAL-TECHNIQUE FOR DETERMINING REAL-SPACE ATOMIC IMAGES APPLIED TO ALUMINUM ADSORBED ON SILICON(111)

被引：79

作者：

WU, H

LAPEYRE, GJ

HUANG, H

TONG, SY

机构：

[1] UNIV WISCONSIN,SURFACE STUDIES LAB,MILWAUKEE,WI 53201

[2] UNIV WISCONSIN,DEPT PHYS,MILWAUKEE,WI 53201

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.71.251

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The holographic principle is used to invert experimental photoelectron diffraction spectra to reveal the surface structure of Si(111)(square-root 3 x square-root 3)-Al. A new transformation method is applied to measured scanned-photon-energy photoemission spectra. The results of each inversion are summed over the set of angles giving images which clearly show the local geometry near the emitting atom, Al. Images are also obtained by theoretical simulation and agree well with experiment. The results demonstrate the technique as a direct, model-independent structural method, yielding bond distances and directions.

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页码：251 / 254

页数：4

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