Magnetization measurements of magnetic two-dimensional electron gases
Magnetization measurements of magnetic two-dimensional electron gases
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DOI:
10.1103/physrevlett.86.4644
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发表时间:
2001-05-14
影响因子:
8.6
通讯作者:
Awschalom, DD
中科院分区:
文献类型:
--
作者:
Harris, JGE;Knobel, R;Awschalom, DD
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.