Structure of quantum wires in Au/Si(557)

被引：131

作者：

Robinson, IK

Bennett, PA

Himpsel, FJ

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA

[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.88.096104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the Au/Si(557) surface is determined from three-dimensional x-ray diffraction measurements, which directly mandate a single Au atom per unit cell. We use a "heavy atom" method in which the Au atom images the rest of the structure. Au is found to substitute for a row of first-layer Si atoms in the middle of the terrace, which then reconstructs by step rebonding and adatoms. The structure is consistent with the 1D metallic behavior seen by photoemission.

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页码：4 / 961044

页数：4

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