Two-dimensional electron gas in Zn-polar ZnMgO/ZnO heterostructure grown by metal-organic vapor phase epitaxy

dc.contributor.authorYe, J. D.
dc.contributor.authorPannirselvam, S.
dc.contributor.authorLim, S. T.
dc.contributor.authorBi, J. F.
dc.contributor.authorSun, X. W.
dc.contributor.authorLo, G. Q.
dc.contributor.authorTeo, K. L.
dc.date.accessioned2015-09-17T01:44:54Z
dc.date.available2015-09-17T01:44:54Z
dc.date.issued2010
dc.date.updated2015-12-10T09:26:30Z
dc.description.abstractWe report the formation of two-dimensional electron gas 2DEG at the Zn1−xMgxO/ZnO interface grown by metal-organic vapor phase epitaxy on sapphire substrates. The existence of the 2DEG is confirmed by the observation of Shubnikov–de Haas oscillations and the integer quantum Hall effect. In particular, the Zn0.8Mg0.2O/ZnO heterostructure shows a high Hall mobility of 2138 cm2 /V s with a carrier sheet density of 3.511012 cm−2 at 1.4 K. We attribute the origin of 2DEG to be the donor states on ZnMgO surface. The dependence of carrier sheet density of 2DEG on ZnMgO layer thickness and Mg composition x are also investigated.
dc.description.sponsorshipThis work was supported by the Singapore Agency for Science, Technology, and Research A*STAR, under SERC Grant No. 0521260095 and Infuse Project No. I01-0911-06.en_AU
dc.identifier.issn0003-6951en_AU
dc.identifier.urihttp://hdl.handle.net/1885/15503
dc.publisherAmerican Institute of Physics
dc.rightsPublishers version/PDF may be used on author's personal website, institutional website or institutional repository http://www.sherpa.ac.uk/romeo/issn/0003-6951 Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at 10.1063/1.3489101
dc.sourceApplied Physics Letters
dc.subjectTwo-dimensional electron gas
dc.subjectZn-polar ZnMgO/ZnO
dc.subjectheterostructure
dc.subjectmetal-organic vapor phase epitaxy
dc.titleTwo-dimensional electron gas in Zn-polar ZnMgO/ZnO heterostructure grown by metal-organic vapor phase epitaxy
dc.typeJournal article
local.bibliographicCitation.issue11en_AU
local.bibliographicCitation.lastpage111908.3
local.bibliographicCitation.startpage111908en_AU
local.contributor.affiliationYe, J D, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationYe, J D, Institute of Microelectronics, Singaporeen_AU
local.contributor.affiliationPannirselvam, S, National University of Singapore, Singaporeen_AU
local.contributor.affiliationLim, S, National University of Singapore, Singaporeen_AU
local.contributor.affiliationBi, J F, Department of Electrical and Computer Engineering, National University of Singapore, Singaporeen_AU
local.contributor.affiliationSun, X W, School of Electrical and Electronic Engineering, Nanyang Technological University, Singaporeen_AU
local.contributor.affiliationLo, G Q, Institute of Microelectronics, Singaporeen_AU
local.contributor.affiliationTeo, K L, Department of Electrical and Computer Engineering, National University of Singapore, Singaporeen_AU
local.contributor.authoruidYe, Jiandong, u4920827en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor020299en_AU
local.identifier.ariespublicationf2965xPUB868en_AU
local.identifier.citationvolume97en_AU
local.identifier.doi10.1063/1.3489101en_AU
local.identifier.scopusID2-s2.0-77956847762
local.identifier.uidSubmittedByu3488905en_AU
local.type.statusPublished Versionen_AU

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