標題: Permanent ferroelectric retention of BiFeO3 mesocrystal
作者: Hsieh, Ying-Hui
Xue, Fei
Yang, Tiannan
Liu, Heng-Jui
Zhu, Yuanmin
Chen, Yi-Chun
Zhan, Qian
Duan, Chun-Gang
Chen, Long-Qing
He, Qing
Chu, Ying-Hao
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 26-Oct-2016
摘要: Non-volatile electronic devices based on magnetoelectric multiferroics have triggered new possibilities of outperforming conventional devices for applications. However, ferroelectric reliability issues, such as imprint, retention and fatigue, must be solved before the realization of practical devices. In this study, everlasting ferroelectric retention in the heteroepitaxially constrained multiferroic mesocrystal is reported, suggesting a new approach to overcome the failure of ferroelectric retention. Studied by scanning probe microscopy and transmission electron microscopy, and supported via the phase-field simulations, the key to the success of ferroelectric retention is to prevent the crystal from ferroelastic deformation during the relaxation of the spontaneous polarization in a ferroelectric nanocrystal.
URI: http://dx.doi.org/10.1038/ncomms13199
http://hdl.handle.net/11536/132624
ISSN: 2041-1723
DOI: 10.1038/ncomms13199
期刊: NATURE COMMUNICATIONS
Volume: 7
起始頁: 0
結束頁: 0
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