Ferroelectric control of the conduction at the LaAlO3/SrTiO 3 heterointerface

Vu Thanh Tra; Jhih-Wei Chen; Po-Cheng Huang; Bo-Chao Huang; Ye Cao; Chao-Hui Yeh; Heng-Jui Liu; Eugene A. Eliseev; Anna N. Morozovska; Jiunn-Yuan Lin; Yi-Chun Chen; Ming-Wen Chu; Po-Wen Chiu; Ya-Ping Chiu; Long-Qing Chen; Chung-Lin Wu; Ying-Hao Chu

doi:10.1002/adma.201300757

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Ferroelectric control of the conduction at the LaAlO3/SrTiO 3 heterointerface

Journal article

Peer reviewed

Ferroelectric control of the conduction at the LaAlO3/SrTiO 3 heterointerface

Vu Thanh Tra, Jhih-Wei Chen, Po-Cheng Huang, Bo-Chao Huang, Ye Cao, Chao-Hui Yeh, Chao-Hui Yeh, Heng-Jui Liu, Eugene A. Eliseev, Anna N. Morozovska, …

Advanced Materials, Vol.25(24), pp.3357-3364

25/06/2013

DOI: https://doi.org/10.1002/adma.201300757

Abstract

2D electron gases (2DEG)

complex oxides

ferroelectric polarization

heterointerfaces

metal-insulator transitions

Modulation of band bending at a complex oxide heterointerface by a ferroelectric layer is demonstrated. The as-grown polarization (P _up ) leads to charge depletion and consequently low conduction. Switching the polarization direction (P _down ) results in charge accumulation and enhances the conduction at the interface. The metal-insulator transition at a conducting polar/nonpolar oxide heterointerface can be controlled by ferroelectric doping. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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Title: Ferroelectric control of the conduction at the LaAlO3/SrTiO 3 heterointerface
Creators - without role: Vu Thanh Tra - National Yang Ming Chiao Tung University
Jhih-Wei Chen - National Cheng Kung University
Po-Cheng Huang - National Sun Yat-sen University
Bo-Chao Huang - National Sun Yat-sen University
Ye Cao - Pennsylvania State University
Chao-Hui Yeh - Department of Electrical Engineering , National Tsing Hua University
Chao-Hui Yeh - National Tsing Hua University
Heng-Jui Liu - Institute of Physics , National Chiao Tung University
Eugene A. Eliseev - Institute of Problems of Material Sciences , Institute of Physics , National Academy of Science of Ukraine
Anna N. Morozovska - Institute of Physics
Jiunn-Yuan Lin - Institute of Physics , National Chiao Tung University
Yi-Chun Chen - National Cheng Kung University
Ming-Wen Chu - National Taiwan University
Po-Wen Chiu - Department of Electrical Engineering , National Tsing Hua University
Ya-Ping Chiu - National Sun Yat-sen University
Long-Qing Chen - Pennsylvania State University
Chung-Lin Wu - National Cheng Kung University
Ying-Hao Chu
Ying-Hao Chu - Institute of Physics , National Chiao Tung University
Grant note: NSF-DMR-1210588, NSF, National Science Foundation
Identifiers: 9957768864506774
Academic Unit: Department of Materials Science and Engineering, College of Engineering, National Tsing Hua University; Institute of Electronics Engineering, College of Electrical Engineering and Computer Science, National Tsing Hua University
Language: English
Resource Type: Journal article
Publication Details: Advanced Materials, Vol.25(24), pp.3357-3364

Ferroelectric control of the conduction at the LaAlO3/SrTiO 3 heterointerface

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