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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
发表期刊APPLIED PHYSICS LETTERS
ISSN0003-6951
卷号112期号:2页码:-
摘要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.; 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.
部门归属[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
关键词Oxide Interfaces Conductivity
学科领域Physics, Applied
资助者National 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]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79590
专题中国科学院金属研究所
通讯作者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.
推荐引用方式
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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