Proton-mediated reversible switching of metastable ferroelectric phases with low operation voltages.
Type
ArticleAuthors
He, Xin
Ma, Yinchang

Zhang, Chenhui

Fu, Aiping

Hu, Weijin

Xu, Yang

Yu, Bin

Liu, Kai

Wang, Hua

Zhang, Xixiang

Xue, Fei

KAUST Department
Physical Science and Engineering (PSE) DivisionMaterial Science and Engineering Program
KAUST Grant Number
ORA-CRG10-2021-4665ORA-CRG8-2019-4081
Date
2023-05-24Permanent link to this record
http://hdl.handle.net/10754/690960
Metadata
Show full item recordAbstract
The exploration of ferroelectric phase transitions enables an in-depth understanding of ferroelectric switching and promising applications in information storage. However, controllably tuning the dynamics of ferroelectric phase transitions remains challenging owing to inaccessible hidden phases. Here, using protonic gating technology, we create a series of metastable ferroelectric phases and demonstrate their reversible transitions in layered ferroelectric α-In2Se3 transistors. By varying the gate bias, protons can be incrementally injected or extracted, achieving controllable tuning of the ferroelectric α-In2Se3 protonic dynamics across the channel and obtaining numerous intermediate phases. We unexpectedly discover that the gate tuning of α-In2Se3 protonation is volatile and the created phases remain polar. Their origin, revealed by first-principles calculations, is related to the formation of metastable hydrogen-stabilized α-In2Se3 phases. Furthermore, our approach enables ultralow gate voltage switching of different phases (below 0.4 volts). This work provides a possible avenue for accessing hidden phases in ferroelectric switching.Citation
He, X., Ma, Y., Zhang, C., Fu, A., Hu, W., Xu, Y., Yu, B., Liu, K., Wang, H., Zhang, X., & Xue, F. (2023). Proton-mediated reversible switching of metastable ferroelectric phases with low operation voltages. Science Advances, 9(21). https://doi.org/10.1126/sciadv.adg4561Sponsors
This research was supported by the ZJU-Hangzhou Global Scientific and Technological Innovation Center with a startup funding (02170000-K02013012) and the King Abdullah University of Science and Technology Office of Sponsored Research (OSR) under award numbers ORA-CRG8-2019-4081 and ORA-CRG10-2021-4665. K.L. acknowledges support from the SRC/NIST nCORE SMART center. W.H. would like to acknowledge the support by the National Science Foundation of China (grant no. 61974147). H.W. acknowledges support from the Zhejiang Provincial Natural Science Foundation of China (grant no. LDT23F04014F01). F.X. acknowledges support from the Zhejiang Provincial Natural Science Foundation of China (grant no. LDT23F04013F04).Journal
Science advancesPubMed ID
37224248Additional Links
https://www.science.org/doi/10.1126/sciadv.adg4561ae974a485f413a2113503eed53cd6c53
10.1126/sciadv.adg4561
Scopus Count
Except where otherwise noted, this item's license is described as Archived with thanks to Science advances under a Creative Commons license, details at: https://creativecommons.org/licenses/by-nc/4.0/
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