| Issue |
Europhys. Lett.
Volume 65, Number 3, February 2004
|
|
|---|---|---|
| Page(s) | 393 - 399 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2003-10094-2 | |
| 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: becker@physik.uni-wuerzburg.de
Received:
5
August
2003
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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