Optical probing of MgZnO/ZnO heterointerface confinement potential energy levels

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

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17 Citations (Scopus)


Low-temperature photoluminescence and reflectance measurements were employed to study the optical transitions present in two-dimensional electron systems confined at MgxZn1-xO/ZnO heterojunctions. Transitions involving A- and B-holes and electrons from the two lowest subbands formed within the confinement potential are detected. In the studied density range of 2.0-6.5 × 1011cm-2, the inter-subband splitting is measured and the first excited electron subband is shown to be empty of electrons.

Original languageEnglish
JournalApplied Physics Letters
Issue number8
Publication statusPublished - 2015 Feb 23

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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