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Polarization and charge-transfer effect on the transport properties in two-dimensional electron gases/LaNiO3 heterostructure
Chen, MJ; Ning, XK; Wang, ZJ; Liu, P; Wang, SF; Wang, JL; Fu, GS; Ma, S; Liu, W; Zhang, ZD; Ning, XK (reprint author), Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China.; Wang, ZJ (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, IMR, 72 Wenhua Rd, Shenyang 110016, Peoples R China.; Wang, ZJ (reprint author), Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China.
2018-01-08
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume112Issue:2Pages:-
AbstractThe film thickness dependent transport properties of the LaNiO3 (LNO) layer epitaxially grown on LaAlv/SrTiO3 (LAO) 2-dimensional electronic gas (2DEG) have been investigated. The ultrathin LNO films grown on the 2DEG have a sheet resistance below the values of h/e(2) in all temperature ranges. The electron density is enhanced by more than one order of magnitude by capping LNO films. X-ray photoelectron spectroscopy shows that the interface undergoes unambiguous charge transfer and electronic reconstruction, leading to modulation doping of such atomically engineered complex oxide heterointerfaces. The polar-catastrophe of the 2DEG is directly linked to the electronic structure and transport properties of the LNO. The transport properties can be well modulated by the thickness of the LAO in the 2DEG, and the data can be well fitted with the polar-catastrophe scenario. These results suggest a general approach to tunable functional films in oxide heterostructures with the 2DEG. Published by AIP Publishing.; The film thickness dependent transport properties of the LaNiO3 (LNO) layer epitaxially grown on LaAlv/SrTiO3 (LAO) 2-dimensional electronic gas (2DEG) have been investigated. The ultrathin LNO films grown on the 2DEG have a sheet resistance below the values of h/e(2) in all temperature ranges. The electron density is enhanced by more than one order of magnitude by capping LNO films. X-ray photoelectron spectroscopy shows that the interface undergoes unambiguous charge transfer and electronic reconstruction, leading to modulation doping of such atomically engineered complex oxide heterointerfaces. The polar-catastrophe of the 2DEG is directly linked to the electronic structure and transport properties of the LNO. The transport properties can be well modulated by the thickness of the LAO in the 2DEG, and the data can be well fitted with the polar-catastrophe scenario. These results suggest a general approach to tunable functional films in oxide heterostructures with the 2DEG. Published by AIP Publishing.
description.department[chen, m. j. ; ning, x. k. ; liu, p. ; wang, s. f. ; wang, j. l.] hebei univ, coll phys sci & technol, hebei key lab opt elect informat & mat, baoding 071002, peoples r china ; [wang, z. j. ; ma, s. ; liu, w. ; zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, imr, 72 wenhua rd, shenyang 110016, peoples r china ; [wang, z. j.] shenyang univ technol, sch mat sci & engn, shenyang 110870, peoples r china
KeywordOxide Interfaces Conductivity
Subject AreaPhysics, Applied
Funding OrganizationNational Natural Science Foundation of China [11604073, 51372064]; Nature Science Foundation of Hebei Province [A2017201104, E2017201227]; Natural Science Foundation of Educational Department of Hebei Province [BJ2017046]; One Province and One School fund; Graduate Student Innovation fund Project in Hebei Province [CXZZBS2017023]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79590
Collection中国科学院金属研究所
Corresponding AuthorNing, XK (reprint author), Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China.; Wang, ZJ (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, IMR, 72 Wenhua Rd, Shenyang 110016, Peoples R China.; Wang, ZJ (reprint author), Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China.
Recommended Citation
GB/T 7714
Chen, MJ,Ning, XK,Wang, ZJ,et al. Polarization and charge-transfer effect on the transport properties in two-dimensional electron gases/LaNiO3 heterostructure[J]. APPLIED PHYSICS LETTERS,2018,112(2):-.
APA Chen, MJ.,Ning, XK.,Wang, ZJ.,Liu, P.,Wang, SF.,...&Wang, ZJ .(2018).Polarization and charge-transfer effect on the transport properties in two-dimensional electron gases/LaNiO3 heterostructure.APPLIED PHYSICS LETTERS,112(2),-.
MLA Chen, MJ,et al."Polarization and charge-transfer effect on the transport properties in two-dimensional electron gases/LaNiO3 heterostructure".APPLIED PHYSICS LETTERS 112.2(2018):-.
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