THEORY OF SCANNING-TUNNELING-MICROSCOPY WITH SPIN-POLARIZED ELECTRONS OBTAINED FROM A SEMICONDUCTING TIP

被引：23

作者：

LAIHO, R

REITTU, HJ

机构：

[1] Wihuri Physical Laboratory, University of Turku

来源：

SURFACE SCIENCE | 1993年 / 289卷 / 03期

基金：

芬兰科学院;

关键词：

D O I：

10.1016/0039-6028(93)90667-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A principle of spin-polarized scanning tunneling microscopy (STM) for studying surface magnetism is theoretically analysed. In this approach the source of spin-polarized electrons is a semiconducting (e.g. GaAs) tip illuminated by circularly polarized light. Equations describing the tunneling current flowing between the tip and a ferromagnetic sample are derived. It is found that the magnetic domains and the quantization axis of the surface spins can be resolved with this method.

引用

页码：363 / 369

页数：7

共 20 条

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