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Interplay of Rashba, Zeeman and Landau splitting in a magnetic two dimensional electron gas

Y. S. Gui·C. R. Becker·J. Liu·V. Daumer·V. Hock·H. Buhmann·L. W. Molenkamp
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Abstract

The transport properties of a magnetic two dimensional electron gas consisting of a modulation doped n type HgMnTe/HgCdTe quantum well, QW, have been investigated. By analyzing the Shubnikov-de Haas oscillations and the node positions of their beating patterns, we have been able to separate the gate voltage dependent Rashba spin-orbit splitting from the temperature dependent giant Zeeman splitting. It has been experimentally demonstrated that the Rashba spin-orbit splitting is larger than or comparable to the $sp-d$ exchange interaction induced giant Zeeman splitting in this magnetic 2DEG even at moderately high magnetic fields.

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Y. S. Gui, C. R. Becker, J. Liu, V. Daumer, V. Hock, H. Buhmann, L. W. Molenkamp. 2002-06-18. Interplay of Rashba, Zeeman and Landau splitting in a magnetic two dimensional electron gas. https://arxiv.org/abs/cond-mat/0206335

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