Metallic and Insulating Interfaces of Amorphous SrTiO3-Based Oxide Heterostructures

Yunzhong Chen; Nini Pryds; J.E. Kleibeuker; Gertjan Koster; Jirong Sun; Eugen Stamate; Baogen Shen; Augustinus J.H.M. Rijnders; Søren Linderoth

doi:10.1021/nl201821j

Metallic and Insulating Interfaces of Amorphous SrTiO3-Based Oxide Heterostructures

Yunzhong Chen, Nini Pryds, J.E. Kleibeuker, Gertjan Koster, Jirong Sun, Eugen Stamate, Baogen Shen, Augustinus J.H.M. Rijnders, Søren Linderoth

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Abstract

The conductance confined at the interface of complex oxide heterostructures provides new opportunities to explore nanoelectronic as well as nanoionic devices. Herein we show that metallic interfaces can be realized in SrTiO3-based heterostructures with various insulating overlayers of amorphous LaAlO3, SrTiO3, and yttria-stabilized zirconia films. On the other hand, samples of amorphous La7/8Sr1/8MnO3 films on SrTiO3 substrates remain insulating. The interfacial conductivity results from the formation of oxygen vacancies near the interface, suggesting that the redox reactions on the surface of SrTiO3 substrates play an important role.

Original language	Undefined
Pages (from-to)	3774-3778
Number of pages	5
Journal	Nano letters
Volume	11
Issue number	9
DOIs	https://doi.org/10.1021/nl201821j
Publication status	Published - 2011

Keywords

METIS-280112
IR-104474

Access to Document

10.1021/nl201821j

Cite this

@article{84146f0943354940b7de996595421840,

title = "Metallic and Insulating Interfaces of Amorphous SrTiO3-Based Oxide Heterostructures",

abstract = "The conductance confined at the interface of complex oxide heterostructures provides new opportunities to explore nanoelectronic as well as nanoionic devices. Herein we show that metallic interfaces can be realized in SrTiO3-based heterostructures with various insulating overlayers of amorphous LaAlO3, SrTiO3, and yttria-stabilized zirconia films. On the other hand, samples of amorphous La7/8Sr1/8MnO3 films on SrTiO3 substrates remain insulating. The interfacial conductivity results from the formation of oxygen vacancies near the interface, suggesting that the redox reactions on the surface of SrTiO3 substrates play an important role.",

keywords = "METIS-280112, IR-104474",

author = "Yunzhong Chen and Nini Pryds and J.E. Kleibeuker and Gertjan Koster and Jirong Sun and Eugen Stamate and Baogen Shen and Rijnders, {Augustinus J.H.M.} and S{\o}ren Linderoth",

year = "2011",

doi = "10.1021/nl201821j",

language = "Undefined",

volume = "11",

pages = "3774--3778",

journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Metallic and Insulating Interfaces of Amorphous SrTiO3-Based Oxide Heterostructures

AU - Chen, Yunzhong

AU - Pryds, Nini

AU - Kleibeuker, J.E.

AU - Koster, Gertjan

AU - Sun, Jirong

AU - Stamate, Eugen

AU - Shen, Baogen

AU - Rijnders, Augustinus J.H.M.

AU - Linderoth, Søren

PY - 2011

Y1 - 2011

N2 - The conductance confined at the interface of complex oxide heterostructures provides new opportunities to explore nanoelectronic as well as nanoionic devices. Herein we show that metallic interfaces can be realized in SrTiO3-based heterostructures with various insulating overlayers of amorphous LaAlO3, SrTiO3, and yttria-stabilized zirconia films. On the other hand, samples of amorphous La7/8Sr1/8MnO3 films on SrTiO3 substrates remain insulating. The interfacial conductivity results from the formation of oxygen vacancies near the interface, suggesting that the redox reactions on the surface of SrTiO3 substrates play an important role.

AB - The conductance confined at the interface of complex oxide heterostructures provides new opportunities to explore nanoelectronic as well as nanoionic devices. Herein we show that metallic interfaces can be realized in SrTiO3-based heterostructures with various insulating overlayers of amorphous LaAlO3, SrTiO3, and yttria-stabilized zirconia films. On the other hand, samples of amorphous La7/8Sr1/8MnO3 films on SrTiO3 substrates remain insulating. The interfacial conductivity results from the formation of oxygen vacancies near the interface, suggesting that the redox reactions on the surface of SrTiO3 substrates play an important role.

KW - METIS-280112

KW - IR-104474

U2 - 10.1021/nl201821j

DO - 10.1021/nl201821j

M3 - Article

SN - 1530-6984

VL - 11

SP - 3774

EP - 3778

JO - Nano letters

JF - Nano letters

IS - 9

ER -