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Charged domain wall modulation of resistive switching with large ON/OFF ratios in high density BiFeO3 nano-islands
Han, M. J.; Tang, Y. L.; Wang, Y. J.; Zhu, Y. L.; Ma, J. Y.; Geng, W. R.; Feng, Y. P.; Zou, M. J.; Zhang, N. B.; Ma, X. L.
2020-04-01
Source PublicationACTA MATERIALIA
Volume187Pages:12-18
AbstractFerroelectrics exhibit polarization tunable resistance switching behaviors, which are promising for next-generation non-volatile memory devices. For technological applications, thinner nanoscale arrays are expected, which feature with higher density and larger ON/OFF (R-ON/OFF) ratios in the metal/ferroelectrics/semiconductor heterojunction. Here, we acquire high density BiFeO3 (BFO) nano-islands around 10 nm in thickness displaying a high R-ON/OFF ratio of 10(3), comparable to the tunnel junctions. Moreover, both the macroscopic and microscopic resistive switching behaviors of the present BFO films reveal an unexpected filamentary-type resistive switching which is modified by the charged domain walls in nano-islands dominated by the centertype domains. Particularly, the charged domain walls spontaneously formed within the BFO nano-islands are proposed as the conductive paths based on the redistribution of carriers under the applied voltages. Potential applications for memories with large RON/OFF ratios of such kind of configurable charged domain walls are demonstrated. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
DOI10.1016/j.actamat.2020.01.034
WOS IDWOS:000518706700002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83004
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Han, M. J.,Tang, Y. L.,Wang, Y. J.,et al. Charged domain wall modulation of resistive switching with large ON/OFF ratios in high density BiFeO3 nano-islands[J]. ACTA MATERIALIA,2020,187:12-18.
APA Han, M. J..,Tang, Y. L..,Wang, Y. J..,Zhu, Y. L..,Ma, J. Y..,...&Ma, X. L..(2020).Charged domain wall modulation of resistive switching with large ON/OFF ratios in high density BiFeO3 nano-islands.ACTA MATERIALIA,187,12-18.
MLA Han, M. J.,et al."Charged domain wall modulation of resistive switching with large ON/OFF ratios in high density BiFeO3 nano-islands".ACTA MATERIALIA 187(2020):12-18.
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