Terahertz radiation-induced magnetoresistance oscillations of a high-density and high-mobility two-dimensional electron gas
Autor: | A. K. Bakarov, P. Vierling, Vassilij Belkov, Sergey Danilov, Sergey Ganichev, A. I. Toropov, D. A. Kozlov, Sebastian Stachel, D. V. Dmitriev, Christina Zoth, Z. D. Kvon |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | JETP Letters. 97:41-44 |
ISSN: | 1090-6487 0021-3640 |
DOI: | 10.1134/s0021364013010049 |
Popis: | 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. |
Databáze: | OpenAIRE |
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