Investigation of quantum oscillations in ZnO/CdO heterostructure

Investigation of quantum oscillations in ZnO/CdO heterostructure

We report on the observation of the Shubnikov–de Haas oscillation in a polycrystalline ZnO/CdO heterostructure grown on a silicon substrate by a spray pyrolysis technique in temperatures below 6 K. From the analysis of these quantum oscillations, we obtained the cyclotronic effective mass, the 2D ca...

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Veröffentlicht in:Journal of applied physics 2021-09, Vol.130 (9)
Hauptverfasser: da Silva, M. J., Vargas, L. M. B., de Godoy, M. P. F., Bolaños, K., Soares, D. A. W., de Castro, S., Peres, M. L.
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Carrier density
Cyclotrons
Electron gas
Heterostructures
Oscillations
Silicon substrates
Spray pyrolysis
Zinc oxide
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Zusammenfassung:We report on the observation of the Shubnikov–de Haas oscillation in a polycrystalline ZnO/CdO heterostructure grown on a silicon substrate by a spray pyrolysis technique in temperatures below 6 K. From the analysis of these quantum oscillations, we obtained the cyclotronic effective mass, the 2D carrier concentration, and the thickness of the two-dimensional electron gas in the interface of the two layers. The results suggest that a two-dimensional electron gas is successfully obtained at the ZnO/CdO interface.
ISSN:0021-8979
1089-7550
DOI:10.1063/5.0058569