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IBS Publications RepositoryCenter for Correlated Electron Systems(강상관계 물질 연구단)1. Journal Papers (저널논문)

Enhanced tunability of two-dimensional electron gas on SrTiO3 through heterostructuring

DC Field	Value	Language
dc.contributor.author	Hyang Keun Yoo	-
dc.contributor.author	Luca Moreschini	-
dc.contributor.author	Aaron Bostwick	-
dc.contributor.author	Andrew L. Walter	-
dc.contributor.author	Tae Won Noh	-
dc.contributor.author	Eli Rotenberg	-
dc.contributor.author	Young Jun Chang	-
dc.date.accessioned	2020-12-22T02:24:18Z	-
dc.date.accessioned	2020-12-22T02:24:19Z	-
dc.date.available	2020-12-22T02:24:18Z	-
dc.date.available	2020-12-22T02:24:19Z	-
dc.date.created	2020-11-16	-
dc.date.issued	2020-11	-
dc.identifier.issn	1567-1739	-
dc.identifier.uri	https://pr.ibs.re.kr/handle/8788114/7563	-
dc.description.abstract	© 2020 Korean Physical Society. Two-dimensional electron gases (2DEGs) on the SrTiO3 (STO) surface or in STO-based heterostructures have exhibited many intriguing phenomena, which are strongly dependent on the 2DEG-carrier density. We report that the tunability of the 2DEG-carrier density is significantly enhanced by adding a monolayer LaTiO3 (LTO) onto the STO. Ultraviolet (UV) irradiation induced maximum carrier density of the 2DEG in LTO/STO is increased by a factor of similar to 4 times, compared to that of the bare STO. By oxygen gas exposure, it becomes 10 times smaller than that of the bare STO. This enhanced tunability is attributed to the drastic surface property change of a polar LTO layer by UV irradiation and O-2 exposure. This indicates that the 2DEG controllability in LTO/STO is more reliable than that on the bare STO driven by defects, such an oxygen vacancy	-
dc.description.uri	1	-
dc.language	영어	-
dc.publisher	ELSEVIER	-
dc.subject	Two-dimensional electron gas	-
dc.subject	SrTiO3	-
dc.subject	Polar oxide interface	-
dc.subject	Ultraviolet patterning	-
dc.title	Enhanced tunability of two-dimensional electron gas on SrTiO3 through heterostructuring	-
dc.type	Article	-
dc.type.rims	ART	-
dc.identifier.wosid	000577638600011	-
dc.identifier.scopusid	2-s2.0-85090548508	-
dc.identifier.rimsid	73485	-
dc.contributor.affiliatedAuthor	Tae Won Noh	-
dc.identifier.doi	10.1016/j.cap.2020.08.019	-
dc.identifier.bibliographicCitation	CURRENT APPLIED PHYSICS, v.20, no.11, pp.1268 - 1273	-
dc.citation.title	CURRENT APPLIED PHYSICS	-
dc.citation.volume	20	-
dc.citation.number	11	-
dc.citation.startPage	1268	-
dc.citation.endPage	1273	-
dc.description.journalClass	1	-
dc.description.journalRegisteredClass	scie	-
dc.description.journalRegisteredClass	scopus	-
dc.description.journalRegisteredClass	kci	-
dc.subject.keywordPlus	SURFACE	-
dc.subject.keywordPlus	SUPERCONDUCTIVITY	-
dc.subject.keywordPlus	FILMS	-
dc.subject.keywordPlus	COEXISTENCE	-
dc.subject.keywordPlus	INTERFACE	-
dc.subject.keywordPlus	LAYER	-
dc.subject.keywordAuthor	Two-dimensional electron gas	-
dc.subject.keywordAuthor	SrTiO3	-
dc.subject.keywordAuthor	Polar oxide interface	-
dc.subject.keywordAuthor	Ultraviolet patterning	-