Quantum hall ferromagnetism in magnetic heterostuctures and wires

被引：0

作者：

Jaroszynski, J ^{[1
]}

Andrearczyk, T ^{[1
]}

Stringer, EA ^{[1
]}

Karczewski, G ^{[1
]}

Wojtowicz, T ^{[1
]}

Wrobel, J ^{[1
]}

Popovic, D ^{[1
]}

Dietl, T ^{[1
]}

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

Physics of Semiconductors, Pts A and B | 2005年 / 772卷

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetotransport measurements in modulation doped n-(Cd,Mn)Te quantum wells reveal an expected square root dependence of the electronic exchange energy on magnetic field B. Tilted field experiments show that this exchange contribution depends on the tilt angle (theta). At the same time a parallel field suppresses the Ising easy axis anisotropy of the quantum Hall ferromagnet (QHFM). The QHFM spikes disappear in high electron density samples, however, they are clearly seen in a 2 mu m wide wire.

引用

页码：1271 / 1272

页数：2

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