Laterally confined two-dimensional electron gases in self-patterned LaAlO3/SrTiO3 interfaces

被引：9

作者：

Foerster, M. ^{[1
]}

Bachelet, R. ^{[1
]}

Laukhin, V. ^{[1
,2
]}

Fontcuberta, J. ^{[1
]}

Herranz, G. ^{[1
]}

Sanchez, F. ^{[1
]}

机构：

[1] Inst Ciencia Mat Barcelona ICMAB CSIC, Bellaterra 08193, Catalonia, Spain

[2] ICREA, Barcelona 08010, Catalonia, Spain

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 23期

关键词：

OXIDE HETEROINTERFACE; SUPERCONDUCTIVITY; COEXISTENCE;

D O I：

10.1063/1.4728109

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A bottom-up process has been used to engineer the LaAlO3/SrTiO3 interface atomic composition and locally confine the two-dimensional electron gas to lateral sizes in the order of 100 nm. This is achieved by using SrTiO3(001) substrate surfaces with self-patterned chemical termination, which is replicated by the LaAlO3 layer, resulting in a modulated LaO/TiO2 and AlO2/SrO interface composition. We demonstrate the confinement of the conducting interface forming either long-range ordered nanometric stripes or isolated regions. Our results demonstrate that engineering the interface chemical termination is a suitable strategy towards nanoscale lateral confinement of two-dimensional high-mobility systems. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4728109]

引用

页数：5

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[42] Electronic phase separation at LaAlO3/SrTiO3 interfaces tunable by oxygen deficiency [J].

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Caputo, M. ;

Husanu, M-A ;

Bisti, F. ;

Bracher, D. ;

Schmitt, T. ;

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Vaz, C. A. F. ;

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[43] Conducting channel at the LaAlO3/SrTiO3 interface [J].

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Lu, W. M. ;

Zeng, S. W. ;

Annadi, A. ;

Tan, W. L. ;

Qiu, X. P. ;

Zhao, Y. L. ;

Salluzzo, M. ;

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[44] Giant enhancing photoresponse at LaAlO3/SrTiO3 interfaces by the nickelate buffer layer [J].

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[45] Elucidating the origins of the two-dimensional electron gas in LaVO3/SrTiO3 interfaces [J].

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Zhu, X. B. ;

Song, W. H. ;

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Sun, Y. P. .

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[46] LaAlO3 thickness window for electronically controlled magnetism at LaAlO3/SrTiO3 heterointerfaces [J].

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[47] Transport properties of a quasi-two-dimensional electron system formed in LaAlO3/EuTiO3/SrTiO3 heterostructures [J].

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Di Gennaro, E. ;

Granozio, F. Miletto ;

Stornaiuolo, D. ;

Salluzzo, M. ;

Gadaleta, A. ;

Pallecchi, I. ;

Marre, D. ;

Piamonteze, C. ;

Radovic, M. ;

Ristic, Z. ;

Rusponi, S. .

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[48] Infrared study of the quasi-two-dimensional electron system at the interface between SrTiO3 and crystalline or amorphous LaAlO3 [J].

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Corasaniti, M. ;

Kalaboukhov, A. ;

Ortolani, M. ;

Falsetti, E. ;

Sambri, A. ;

Granozio, F. Miletto ;

Capitani, F. ;

Brubach, J. -B. ;

Roy, P. ;

Schade, U. ;

Calvani, P. .

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[49] Scanning Probe Manipulation of Magnetism at the LaAlO3/SrTiO3 Heterointerface [J].

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Hikita, Yasuyuki ;

Hwang, Harold Y. ;

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