Magnetization measurements of magnetic two-dimensional electron gases

被引：55
|
作者：
Harris, JGE
Knobel, R
Maranowski, KD
Gossard, AC
Samarth, N
Awschalom, DD [1 ]
机构：
[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
[2] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[3] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.86.4644
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We directly measure the magnetization of both the conduction electrons and Mn(2+) ions in (Zn,Cd,Mn)Se two-dimensional electron gases (2DEGs) by integrating them into ultrasensitive micromechanical magnetometers. The interplay between spin and orbital energy in these magnetic 2DEGs causes Landau level degeneracies at the Fermi energy. These Landau level crossings result in novel features in the de Haas-van Alphen oscillations, which are quantitatively reproduced by a simple model.
引用
收藏
页码：4644 / 4647
页数：4
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