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Interfacial and bulk polaron masses in Zn1-xMgxO/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy

Lloyd-Hughes, J; Failla, M; Ye, Jiandong; Jones, S P P; Teo, Kie Leong; Jagadish, Chennupati

Description

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]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/70077
Source: Applied Physics Letters
DOI: 10.1063/1.4921469

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