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Nonvolatile ferroelectric domain wall memory integrated on silicon
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Sun, Haoying, Wang, Jierong, Wang, Yushu, Guo, Changqing, Gu, Jiahui, Mao, Wei, Yang, Jiangfeng, Liu, Yuwei, Zhang, Tingting, Gao, Tianyi, Fu, Hanyu, Zhang, Tingjun, Hao, Yufeng, Gu, Zhengbin, Wang, Peng, Huang, Houbing and Nie, Yuefeng (2022) Nonvolatile ferroelectric domain wall memory integrated on silicon. Nature Communications, 13 (1). 4332. doi:10.1038/s41467-022-31763-w ISSN 2041-1723.
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Official URL: https://doi.org/10.1038/s41467-022-31763-w
Abstract
Ferroelectric domain wall memories have been proposed as a promising candidate for nonvolatile memories, given their intriguing advantages including low energy consumption and high-density integration. Perovskite oxides possess superior ferroelectric prosperities but perovskite-based domain wall memory integrated on silicon has rarely been reported due to the technical challenges in the sample preparation. Here, we demonstrate a domain wall memory prototype utilizing freestanding BaTiO3 membranes transferred onto silicon. While as-grown BaTiO3 films on (001) SrTiO3 substrate are purely c-axis polarized, we find they exhibit distinct in-plane multidomain structures after released from the substrate and integrated onto silicon due to the collective effects from depolarizing field and strain relaxation. Based on the strong in-plane ferroelectricity, conductive domain walls with reading currents up to nanoampere are observed and can be both created and erased artificially, highlighting the great potential of the integration of perovskite oxides with silicon for ferroelectric domain wall memories.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
SWORD Depositor: | Library Publications Router | ||||||
Journal or Publication Title: | Nature Communications | ||||||
Publisher: | Nature Publishing Group UK | ||||||
ISSN: | 2041-1723 | ||||||
Official Date: | 26 July 2022 | ||||||
Dates: |
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Volume: | 13 | ||||||
Number: | 1 | ||||||
Article Number: | 4332 | ||||||
DOI: | 10.1038/s41467-022-31763-w | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Reuse Statement (publisher, data, author rights): | ** From Springer Nature via Jisc Publications Router ** History: received 10-11-2021; accepted 01-07-2022; registration 04-07-2022; pub-electronic 26-07-2022; online 26-07-2022; collection 12-2022. ** Licence for this article: http://creativecommons.org/licenses/by/4.0/ | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 2 August 2022 | ||||||
Date of first compliant Open Access: | 2 August 2022 | ||||||
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