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This article is cited in 7 scientific papers (total in 7 papers)
CONDENSED MATTER
Renormalization of the effective electron mass governing the period of microwave-induced resistance oscillations in ZnO/MgZnO heterojunctions
A. V. Shchepetilnikov, Yu. A. Nefyodov, A. A. Dremin, I. V. Kukushkin Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russia
Abstract:
The phenomenon of microwave-induced magnetoresistance oscillations is studied in a series of ZnO/MgZnO heterojunctions characterized by different two-dimensional electron densities $n$. It is found that the effective electron mass $m^*$ determined from the period of microwave-induced magnetoresistance oscillations depends essentially on this parameter. For high densities, the value of $m^*$ tends to the effective electron mass in bulk ZnO, while for low densities, $m^*$ increases pronouncedly and becomes considerably larger than the electron cyclotron mass. The experimental results give clear evidence of a significant impact of the electron-electron interaction on microwave-induced magnetoresistance oscillations.
Received: 19.04.2018 Revised: 03.05.2018
Citation:
A. V. Shchepetilnikov, Yu. A. Nefyodov, A. A. Dremin, I. V. Kukushkin, “Renormalization of the effective electron mass governing the period of microwave-induced resistance oscillations in ZnO/MgZnO heterojunctions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 107:12 (2018), 799–802; JETP Letters, 107:12 (2018), 770–773
Linking options:
https://www.mathnet.ru/eng/jetpl5653 https://www.mathnet.ru/eng/jetpl/v107/i12/p799
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