Microwave magnetoplasma resonances of two-dimensional electrons in MgZnO/ZnO heterojunctions

V. E. Kozlov, A. B. Van'Kov, S. I. Gubarev, I. V. Kukushkin, V. V. Solovyev, J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki, J. H. Smet

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22 Citations (Scopus)


The plasma, magnetoplasma, and edge magnetoplasma excitations were investigated in two-dimensional electron systems hosted at the heterointerface of MgZnO/ZnO structures using optical detection of resonant microwave absorption. The magnetodispersion of the plasma excitations allowed the extraction of the electron effective mass. It was found to exhibit a surprisingly large dependence on the electron density, which is difficult to account for just from nonparabolicity effects.

Original languageEnglish
Article number085304
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
Publication statusPublished - 2015 Feb 9


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