Observation of plasma and magnetoplasma resonances of two-dimensional electrons in a single MgZnO/ZnO heterojunction

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

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1 Citation (Scopus)

Abstract

The magnetoluminescence of the two-dimensional electron system in a single MgxZn1 - xO/ZnO hetero-junction (x = 0.02) at a temperature of 0.3 K in magnetic fields up to 14 T has been studied. The concentration of two-dimensional electrons in the structure under study has been determined from the oscillations of the luminescence intensity as a function of the magnetic field. The value thus obtained is close to the one derived from transport measurements. The resonance corresponding to plasma excitations of two-dimensional electrons has been observed using optical detection of microwave absorption. In a magnetic field, the lower branch of magnetoplasma excitations, which corresponds to the propagation of edge magnetoplasmons in a structure with nearly square geometry, has been observed and investigated.

Original languageEnglish
Pages (from-to)223-226
Number of pages4
JournalJETP Letters
Volume98
Issue number4
DOIs
Publication statusPublished - 2013 Oct

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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