Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure

Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure

In this work, we fabricate BaTiO3/La0.67Sr0.33MnO3 (BTO/LSMO) ferroelectric tunnel junction on (001) SrTiO3 substrate by pulsed laser deposition method. Combining piezoresponse force and conductive-tip atomic force microscopy, we demonstrate robust and reproducible polarization-controlled tunneling...

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Main Authors: Xin Ou, Bo Xu, Changjie Gong, Xuexin Lan, Qiaonan Yin, Yidong Xia, Jiang Yin, Zhiguo Liu
Format: Article
Language:English
Published: AIP Publishing LLC 2014-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4876234
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spelling doaj-b3a370bd310745c98cc2d698fceeb84b2020-11-24T22:24:21ZengAIP Publishing LLCAIP Advances2158-32262014-05-0145057106057106-610.1063/1.4876234007405ADVContinuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructureXin Ou0Bo Xu1Changjie Gong2Xuexin Lan3Qiaonan Yin4Yidong Xia5Jiang Yin6Zhiguo Liu7National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of ChinaIn this work, we fabricate BaTiO3/La0.67Sr0.33MnO3 (BTO/LSMO) ferroelectric tunnel junction on (001) SrTiO3 substrate by pulsed laser deposition method. Combining piezoresponse force and conductive-tip atomic force microscopy, we demonstrate robust and reproducible polarization-controlled tunneling behaviors with the resulting tunneling electroresistance value reaching about 102 in ultrathin BTO films (∼1.2 nm) at room temperature. Moreover, local poling areas with different conductivity are finally achieved by controlling the relative proportion of upward and downward domains, and different poling areas exhibit stable transport properties.http://dx.doi.org/10.1063/1.4876234
collection DOAJ
language English
format Article
sources DOAJ
author Xin Ou
Bo Xu
Changjie Gong
Xuexin Lan
Qiaonan Yin
Yidong Xia
Jiang Yin
Zhiguo Liu
spellingShingle Xin Ou
Bo Xu
Changjie Gong
Xuexin Lan
Qiaonan Yin
Yidong Xia
Jiang Yin
Zhiguo Liu
Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
AIP Advances
author_facet Xin Ou
Bo Xu
Changjie Gong
Xuexin Lan
Qiaonan Yin
Yidong Xia
Jiang Yin
Zhiguo Liu
author_sort Xin Ou
title Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
title_short Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
title_full Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
title_fullStr Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
title_full_unstemmed Continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on BaTiO3/La0.67Sr0.33MnO3 heterostructure
title_sort continuously-tuned tunneling behaviors of ferroelectric tunnel junctions based on batio3/la0.67sr0.33mno3 heterostructure
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2014-05-01
description In this work, we fabricate BaTiO3/La0.67Sr0.33MnO3 (BTO/LSMO) ferroelectric tunnel junction on (001) SrTiO3 substrate by pulsed laser deposition method. Combining piezoresponse force and conductive-tip atomic force microscopy, we demonstrate robust and reproducible polarization-controlled tunneling behaviors with the resulting tunneling electroresistance value reaching about 102 in ultrathin BTO films (∼1.2 nm) at room temperature. Moreover, local poling areas with different conductivity are finally achieved by controlling the relative proportion of upward and downward domains, and different poling areas exhibit stable transport properties.
url http://dx.doi.org/10.1063/1.4876234
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