DIMER CHARGE ASYMMETRY DETERMINED BY PHOTOEMISSION FROM EPITAXIAL GE ON SI(100)-(2X1)

被引：60

作者：

LIN, DS ^{[1
]}

MILLER, T ^{[1
]}

CHIANG, TC ^{[1
]}

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.67.2187

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The charge asymmetry between the up and down atoms of an asymmetric dimer on Si(100)-(2 x 1) or Ge(100)-(2 x 1) is tied to the core-level energy splitting. Previous studies of the surface components in the core-level photoemission spectra disagreed on the assignments of the atomic origins, resulting in a disagreement on the charge asymmetry. The present core-level study of the growth of Ge on Si(100) shows clearly that the dimers are essentially covalent.

引用

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页码：2187 / 2190

页数：4

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