Volume 65, Number 3, February 2004
|Page(s)||393 - 399|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 January 2004|
Interplay of Rashba, Zeeman and Landau splitting in a magnetic two-dimensional electron gas
Physikalisches Institut (EP 3), Universität Würzburg Am Hubland, 97074 Würzburg, Germany
Corresponding author: email@example.com
Accepted: 21 November 2003
The transport properties of a magnetic two-dimensional electron gas consisting of a modulation doped n-type 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.
PACS: 71.70.Ej – Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect / 71.70.Gm – Exchange interactions / 72.20.My – Galvanomagnetic and other magnetotransport effects
© EDP Sciences, 2004
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