Lloyd-Hughes, J; Failla, M; Ye, Jiandong; Jones, S P P; Teo, Kie Leong; Jagadish, Chennupati
The cyclotron resonance of polarons in Zn<inf>1-</inf><inf>x</inf>Mg<inf>x</inf>O/ZnO heterostructures (with 0.15 < x < 0.22) was studied by terahertz time-domain spectroscopy. Low-temperature magnetoconductivity spectra of the 2D electron gas at the Zn<inf>1-</inf><inf>x</inf>Mg<inf>x</inf>O/ZnO interface determined the polaron density, mass, and scattering rate. The cyclotron mass of 2D polarons was found to increase significantly with magnetic field B from 0.24 m<inf>e</inf> at B = 2 T to...[Show more]
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