ELECTRON INTERFEROMETRY AT A HETEROJUNCTION INTERFACE

被引：81

作者：

KUBBY, JA

WANG, YR

GREENE, WJ

机构：

[1] Xerox Webster Research Center, Webster, NY 14580

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.65.2165

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have used the tunneling microscope to excite electron standing waves over clean and adsorbate-covered surfaces. For smooth, continuous overlayers we observe a resonance in the conductivity spectra that is absent on the clean surface, over film defects, and over film areas that are rough on a length scale of the electrons de Broglie wavelength. By making reasonable assumptions of the adlayer thickness and interface scattering strength, the resonance can be modeled by a quantum-size effect in electron transmission through the adlayer. © 1990 The American Physical Society.

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页码：2165 / 2168

页数：4

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