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

doi:10.1103/PhysRevB.91.085304

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

Materials Property Division

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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 language	English
Article number	085304
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.91.085304
Publication status	Published - 2015 Feb 9

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.91.085304

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Kozlov, V. E., Van'Kov, A. B., Gubarev, S. I., Kukushkin, I. V., Solovyev, V. V., Falson, J., Maryenko, D., Kozuka, Y., Tsukazaki, A., Kawasaki, M., & Smet, J. H. (2015). Microwave magnetoplasma resonances of two-dimensional electrons in MgZnO/ZnO heterojunctions. Physical Review B - Condensed Matter and Materials Physics, 91(8), [085304]. https://doi.org/10.1103/PhysRevB.91.085304

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abstract = "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.",

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

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AU - Kozlov, V. E.

AU - Van'Kov, A. B.

AU - Gubarev, S. I.

AU - Kukushkin, I. V.

AU - Solovyev, V. V.

AU - Falson, J.

AU - Maryenko, D.

AU - Kozuka, Y.

AU - Tsukazaki, A.

AU - Kawasaki, M.

AU - Smet, J. H.

PY - 2015/2/9

Y1 - 2015/2/9

N2 - 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.

AB - 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.

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

Abstract

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