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Interfacial and bulk polaron masses in Zn<inf>1-</inf><inf>x</inf>Mg<inf>x</inf>O/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy

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dc.contributor.authorLloyd-Hughes, J
dc.contributor.authorFailla, M
dc.contributor.authorYe, Jiandong
dc.contributor.authorJones, S P P
dc.contributor.authorTeo, Kie Leong
dc.contributor.authorJagadish, Chennupati
dc.date.accessioned2015-12-10T23:36:18Z
dc.date.issued2015
dc.date.updated2015-12-10T11:52:29Z
dc.description.abstractThe 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 0.37 m<inf>e</inf> at B = 7.5 T. A nonlinear cyclotron frequency with B was also observed for 3D polarons in ZnO. The findings are discussed in the context of polaron mass renormalization driven by the electron-LO-phonon and electron-acoustic phonon interactions.
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/70077
dc.publisherAmerican Institute of Physics (AIP)
dc.rightsAuthor/s retain copyrighten_AU
dc.sourceApplied Physics Letters
dc.titleInterfacial and bulk polaron masses in Zn<inf>1-</inf><inf>x</inf>Mg<inf>x</inf>O/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy
dc.typeJournal article
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue20
local.bibliographicCitation.lastpage4
local.bibliographicCitation.startpage1
local.contributor.affiliationLloyd-Hughes, J, University of Warwick
local.contributor.affiliationFailla, M, University of Warwick
local.contributor.affiliationYe, Jiandong, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationJones, S P P, University of Oxford
local.contributor.affiliationTeo, Kie Leong, National University of Singapore
local.contributor.affiliationJagadish, Chennupati, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidYe, Jiandong, u4920827
local.contributor.authoruidJagadish, Chennupati, u9212349
local.description.notesImported from ARIES
local.identifier.absfor090600 - ELECTRICAL AND ELECTRONIC ENGINEERING
local.identifier.absfor100700 - NANOTECHNOLOGY
local.identifier.absfor020400 - CONDENSED MATTER PHYSICS
local.identifier.ariespublicationa383154xPUB2213
local.identifier.citationvolume106
local.identifier.doi10.1063/1.4921469
local.identifier.scopusID2-s2.0-84929649093
local.type.statusPublished Version

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