Wurstbauer, Ursula and Knott, S. and Westarp, C.G.v. and Mecking, N. and Rachor, K. and Heitmann, D. and Wegscheider, Werner and Hansen, W. (2010) Anomalous magnetotransport and cyclotron resonance of high mobility magnetic 2DHGs in the quantum Hall regime. Physica E Low-dimensional Systems and Nanostructures 42, pp. 1022-1025.
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Low-temperature magnetotransport measurements and far-infrared transmission spectroscopy are reported in molecular beam epitaxial grown two-dimensional hole systems confined in strained InAs quantum wells with magnetic impurities in the channel. The interactions of the free holes spin with the magnetic moment of 5/2 provided by manganese features intriguing localization phenomena and anomalies in the Hall and the quantum Hall resistance. In magnetic field-dependent far-infrared spectroscopy measurements well-pronounced cyclotron resonance and an additional resonance are found that indicates an anti-crossing with the cyclotron resonance.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider|
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Keywords:||Quantum Hall effect; Magnetic 2DHG; Cyclotron resonance|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Partially|
|Deposited On:||19 Mar 2010 07:56|
|Last Modified:||19 Mar 2010 07:56|