Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces

Young Seon Moon, Dai Hong Kim, Jung Hye Chang, Jong Kwon Choi, Chong Yun Kang, Jin Heon Choi, Seong Hyeon Hong, Seung Hyub Baek, Jin Sang Kim, Ho Won Jang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The two-dimensional electron gas formed at LaAlO3/SrTiO 3 heterointerfaces exhibits a variety of interesting physical properties. Herein, we report on tunable conductivity at LaAlO 3/SrxCa1-xTiO3 heterostructures. By changing the Sr content in the SrxCa1-xTiO3 (0 ≤ x ≤ 1) layers, the orthorhombicity of the films, which inevitably accompanies TiO6 octahedral distortions in the unit cells, could be varied. As a result, the interfacial conductivity can be tuned over 6 orders of magnitude. We suggest that the use of pseudosubstrates with chemical substitution or alloying is a promising route to finely tune conductivity at oxide heterointerfaces.

Original languageEnglish
Article number012903
JournalApplied Physics Letters
Volume102
Issue number1
DOIs
Publication statusPublished - 2013 Jan 7

Fingerprint

conductivity
alloying
electron gas
physical properties
routes
substitutes
oxides
cells

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Moon, Y. S., Kim, D. H., Chang, J. H., Kwon Choi, J., Kang, C. Y., Choi, J. H., ... Jang, H. W. (2013). Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces. Applied Physics Letters, 102(1), [012903]. https://doi.org/10.1063/1.4773986
Moon, Young Seon ; Kim, Dai Hong ; Chang, Jung Hye ; Kwon Choi, Jong ; Kang, Chong Yun ; Choi, Jin Heon ; Hong, Seong Hyeon ; Baek, Seung Hyub ; Kim, Jin Sang ; Jang, Ho Won. / Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces. In: Applied Physics Letters. 2013 ; Vol. 102, No. 1.
@article{c20493886c8840c6b2ecc558705cd349,
title = "Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces",
abstract = "The two-dimensional electron gas formed at LaAlO3/SrTiO 3 heterointerfaces exhibits a variety of interesting physical properties. Herein, we report on tunable conductivity at LaAlO 3/SrxCa1-xTiO3 heterostructures. By changing the Sr content in the SrxCa1-xTiO3 (0 ≤ x ≤ 1) layers, the orthorhombicity of the films, which inevitably accompanies TiO6 octahedral distortions in the unit cells, could be varied. As a result, the interfacial conductivity can be tuned over 6 orders of magnitude. We suggest that the use of pseudosubstrates with chemical substitution or alloying is a promising route to finely tune conductivity at oxide heterointerfaces.",
author = "Moon, {Young Seon} and Kim, {Dai Hong} and Chang, {Jung Hye} and {Kwon Choi}, Jong and Kang, {Chong Yun} and Choi, {Jin Heon} and Hong, {Seong Hyeon} and Baek, {Seung Hyub} and Kim, {Jin Sang} and Jang, {Ho Won}",
year = "2013",
month = "1",
day = "7",
doi = "10.1063/1.4773986",
language = "English",
volume = "102",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "1",

}

Moon, YS, Kim, DH, Chang, JH, Kwon Choi, J, Kang, CY, Choi, JH, Hong, SH, Baek, SH, Kim, JS & Jang, HW 2013, 'Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces', Applied Physics Letters, vol. 102, no. 1, 012903. https://doi.org/10.1063/1.4773986

Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces. / Moon, Young Seon; Kim, Dai Hong; Chang, Jung Hye; Kwon Choi, Jong; Kang, Chong Yun; Choi, Jin Heon; Hong, Seong Hyeon; Baek, Seung Hyub; Kim, Jin Sang; Jang, Ho Won.

In: Applied Physics Letters, Vol. 102, No. 1, 012903, 07.01.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Tunable conductivity at LaAlO3/SrxCa 1-xTiO3 (0 ≤ x ≤ 1) heterointerfaces

AU - Moon, Young Seon

AU - Kim, Dai Hong

AU - Chang, Jung Hye

AU - Kwon Choi, Jong

AU - Kang, Chong Yun

AU - Choi, Jin Heon

AU - Hong, Seong Hyeon

AU - Baek, Seung Hyub

AU - Kim, Jin Sang

AU - Jang, Ho Won

PY - 2013/1/7

Y1 - 2013/1/7

N2 - The two-dimensional electron gas formed at LaAlO3/SrTiO 3 heterointerfaces exhibits a variety of interesting physical properties. Herein, we report on tunable conductivity at LaAlO 3/SrxCa1-xTiO3 heterostructures. By changing the Sr content in the SrxCa1-xTiO3 (0 ≤ x ≤ 1) layers, the orthorhombicity of the films, which inevitably accompanies TiO6 octahedral distortions in the unit cells, could be varied. As a result, the interfacial conductivity can be tuned over 6 orders of magnitude. We suggest that the use of pseudosubstrates with chemical substitution or alloying is a promising route to finely tune conductivity at oxide heterointerfaces.

AB - The two-dimensional electron gas formed at LaAlO3/SrTiO 3 heterointerfaces exhibits a variety of interesting physical properties. Herein, we report on tunable conductivity at LaAlO 3/SrxCa1-xTiO3 heterostructures. By changing the Sr content in the SrxCa1-xTiO3 (0 ≤ x ≤ 1) layers, the orthorhombicity of the films, which inevitably accompanies TiO6 octahedral distortions in the unit cells, could be varied. As a result, the interfacial conductivity can be tuned over 6 orders of magnitude. We suggest that the use of pseudosubstrates with chemical substitution or alloying is a promising route to finely tune conductivity at oxide heterointerfaces.

UR - http://www.scopus.com/inward/record.url?scp=84872307797&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872307797&partnerID=8YFLogxK

U2 - 10.1063/1.4773986

DO - 10.1063/1.4773986

M3 - Article

AN - SCOPUS:84872307797

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 1

M1 - 012903

ER -