Interplay of Rashba, Zeeman and Landau splitting in a magnetic two   dimensional electron gas
  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. 
Y.S. Gui, C.R. Becker, J. Liu, V. Daumer, V. Hock, H. Buhmann, and L.   W. Molenkamp