Publication Date:
2015-01-07
Description:
We have studied experimentally the Landau level (LL) spectrum of a two-dimensional electron gas (2DEG) in an In 0.53 Ga 0.47 As/InP quantum well structure by means of low-temperature magneto-transport coincidence measurement in vector magnetic fields. It is well known that LL crossing occurs in tilted magnetic fields due to a competition between cyclotron energy and Zeeman effect. Remarkably, here we observe an additional type of level-crossing resulting from a competition between Rashba and Zeeman splitting in a small magnetic field, consistent with the theoretical prediction for strongly spin-orbit coupled 2DEG.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics
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