Z. D. Kvon, D. A. Kozlov, S. N. Danilov, C. Zoth, P. Vierling, S. Stachel, V. V. Bel'kov, A. K. Bakarov, D. V. Dmitriev, A. I. Toropov, S. D. Ganichev, “Terahertz radiation-induced magnetoresistance oscillations of a high-density and high-mobility two-dimensional electron gas”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2013, Volume 97, Issue 1,Pages <nobr>45

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CONDENSED MATTER

Terahertz radiation-induced magnetoresistance oscillations of a high-density and high-mobility two-dimensional electron gas

Z. D. Kvon^ab, D. A. Kozlov^a, S. N. Danilov^c, C. Zoth^c, P. Vierling^c, S. Stachel^c, V. V. Bel'kov^cd, A. K. Bakarov^a, D. V. Dmitriev^a, A. I. Toropov^a, S. D. Ganichev^c

^a A. V. Rzhanov Institute of Semiconductor Physics of SB RAS, Novosibirsk
^b Novosibirsk State University
^c Universität Regensburg
^d Ioffe Physico-Technical Institute, Russian Academy of Sciences

Abstract: The terahertz response of a high-density and high-mobility two-dimensional electron gas in $13$-nm GaAs quantum wells at frequencies of $0.7$ and $1.63$ THz has been investigated. Terahertz radiation-induced magnetoresistance oscillations have been discovered. The oscillation maxima coincide with the harmonics of cyclotron resonance. It has been shown that a large number of harmonics (up to the ninth) appear under irradiation at a frequency of $0.7$ THz. In this case, the effect is the analogue of microwave-induced oscillations. At a higher frequency, the oscillation amplitude decreases drastically with an increase in the harmonic number. This indicates a transition to the regime of ordinary cyclotron harmonics.

Received: 15.11.2012
Revised: 28.11.2012

DOI: 10.7868/S0370274X13010098