Conductive tail-to-tail domain walls in epitaxial BiFeO3 films

Yaming Jin, Shuyu Xiao, Jan-Chi Yang, Junting Zhang, Xiaomei Lu, Ying Hao Chu, S. W. Cheong, Jiangyu Li, Yi Kan, Chen Yue, Yang Li, Changcheng Ju, Fengzhen Huang, Jinsong Zhu

Research output: Contribution to journalArticle

Abstract

The complex conductive behavior of ferroelectric domain walls is attracting more and more attention for their potential application as an independent nanoelectronic component. For the (001) epitaxial BiFeO3 films, we find that the domain wall conductivity varies among 71° domain walls, with tail-to-tail (T-T) domain walls more conductive than head-to-head (H-H) and head-to-tail (H-T) ones. Furthermore, it is observed that most of the conductive areas are composed of two parallel lines around the T-T domain walls. These experimental results can be well simulated by our theoretical model based on the polarization configuration and a tunneling mechanism. Our work will help to understand the mechanism of domain wall conductance in ferroelectric materials and further promote the usage of domain walls in advanced nano-devices.

Original languageEnglish
Article number082904
JournalApplied Physics Letters
Volume113
Issue number8
DOIs
Publication statusPublished - 2018 Aug 20

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domain wall
ferroelectric materials
conductivity
polarization
configurations

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Jin, Y., Xiao, S., Yang, J-C., Zhang, J., Lu, X., Chu, Y. H., ... Zhu, J. (2018). Conductive tail-to-tail domain walls in epitaxial BiFeO3 films. Applied Physics Letters, 113(8), [082904]. https://doi.org/10.1063/1.5045721
Jin, Yaming ; Xiao, Shuyu ; Yang, Jan-Chi ; Zhang, Junting ; Lu, Xiaomei ; Chu, Ying Hao ; Cheong, S. W. ; Li, Jiangyu ; Kan, Yi ; Yue, Chen ; Li, Yang ; Ju, Changcheng ; Huang, Fengzhen ; Zhu, Jinsong. / Conductive tail-to-tail domain walls in epitaxial BiFeO3 films. In: Applied Physics Letters. 2018 ; Vol. 113, No. 8.
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abstract = "The complex conductive behavior of ferroelectric domain walls is attracting more and more attention for their potential application as an independent nanoelectronic component. For the (001) epitaxial BiFeO3 films, we find that the domain wall conductivity varies among 71° domain walls, with tail-to-tail (T-T) domain walls more conductive than head-to-head (H-H) and head-to-tail (H-T) ones. Furthermore, it is observed that most of the conductive areas are composed of two parallel lines around the T-T domain walls. These experimental results can be well simulated by our theoretical model based on the polarization configuration and a tunneling mechanism. Our work will help to understand the mechanism of domain wall conductance in ferroelectric materials and further promote the usage of domain walls in advanced nano-devices.",
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Jin, Y, Xiao, S, Yang, J-C, Zhang, J, Lu, X, Chu, YH, Cheong, SW, Li, J, Kan, Y, Yue, C, Li, Y, Ju, C, Huang, F & Zhu, J 2018, 'Conductive tail-to-tail domain walls in epitaxial BiFeO3 films', Applied Physics Letters, vol. 113, no. 8, 082904. https://doi.org/10.1063/1.5045721

Conductive tail-to-tail domain walls in epitaxial BiFeO3 films. / Jin, Yaming; Xiao, Shuyu; Yang, Jan-Chi; Zhang, Junting; Lu, Xiaomei; Chu, Ying Hao; Cheong, S. W.; Li, Jiangyu; Kan, Yi; Yue, Chen; Li, Yang; Ju, Changcheng; Huang, Fengzhen; Zhu, Jinsong.

In: Applied Physics Letters, Vol. 113, No. 8, 082904, 20.08.2018.

Research output: Contribution to journalArticle

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AU - Jin, Yaming

AU - Xiao, Shuyu

AU - Yang, Jan-Chi

AU - Zhang, Junting

AU - Lu, Xiaomei

AU - Chu, Ying Hao

AU - Cheong, S. W.

AU - Li, Jiangyu

AU - Kan, Yi

AU - Yue, Chen

AU - Li, Yang

AU - Ju, Changcheng

AU - Huang, Fengzhen

AU - Zhu, Jinsong

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