SPIN-FLIP ASSISTED RESONANT TUNNELING

被引：7

作者：

WESSEL, R ^{[1
]}

VAGNER, ID ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1990年 / 8卷 / 04期

关键词：

D O I：

10.1016/0749-6036(90)90348-B

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a theory of resonant tunneling via Zeeman split Landau levels in diluted magnetic semiconductor triple barrier heterostructures. In such a system, the tunneling current through two quasistationary discrete levels with high degeneracy exhibits sharp peaks as a function of bias. The spin fluctuations in the localized spin system produce, via the exchange interaction, additional peaks in the tunnel current. These peaks change with temperature in position and height. The results may provide an experimental tool to study the magnetic behaviour of thin layers by tunnel currents. © 1990.

引用

页码：443 / 447

页数：5

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