The endurance degradation of HfO2-based ferroelectric films limits their development toward practical applications. In this work, we systematically investigate the ferroelectric endurance properties of Hf0.5Zr0.5O2 (HZO) film under various pulse voltages and pulse widths, and it is found that the fatigue severity increases first and then decreases with increasing pulse voltage or width. The nonmonotonic fatigue trend explains the controversial results in the literature that both faster and slower fatigues with increasing voltage were observed in HZO. Accordingly, low voltages of ±1.6 V/100 ns are applied for cycling the HZO device to achieve weaker fatigue and a sufficiently switched ferroelectric polarization (7–12 μC cm−2), and a recovery method by introducing wake-up effect is utilized to realize an enhanced endurance >1.01 × 1012 (>5.0 × 1013 in expectation). Our work provides a universal way to weaken fatigue and improve endurance performance of HfO2-based ferroelectric random access memory devices.
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20 February 2023
Research Article|
February 21 2023
High endurance (>1012) via optimized polarization switching ratio for Hf0.5Zr0.5O2-based FeRAM
Jiachen Li
;
Jiachen Li
(Conceptualization, Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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He Wang;
He Wang
(Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Xinzhe Du
;
Xinzhe Du
(Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Zhen Luo;
Zhen Luo
(Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Yuchen Wang;
Yuchen Wang
(Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Weiping Bai;
Weiping Bai
(Writing – original draft, Writing – review & editing)
2
ChangXin Memory Technologies, Inc.
, Hefei 230026, China
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Xingsong Su;
Xingsong Su
(Writing – original draft, Writing – review & editing)
2
ChangXin Memory Technologies, Inc.
, Hefei 230026, China
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Shengchun Shen
;
Shengchun Shen
a)
(Conceptualization, Formal analysis, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Yuewei Yin
;
Yuewei Yin
a)
(Conceptualization, Formal analysis, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
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Xiaoguang Li
Xiaoguang Li
(Conceptualization, Formal analysis, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing)
1
Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China
, Hefei 230026, China
3
Collaborative Innovation Center of Advanced Microstructures, Nanjing University
, Nanjing 210093, China
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Appl. Phys. Lett. 122, 082901 (2023)
Article history
Received:
October 19 2022
Accepted:
February 04 2023
Citation
Jiachen Li, He Wang, Xinzhe Du, Zhen Luo, Yuchen Wang, Weiping Bai, Xingsong Su, Shengchun Shen, Yuewei Yin, Xiaoguang Li; High endurance (>1012) via optimized polarization switching ratio for Hf0.5Zr0.5O2-based FeRAM. Appl. Phys. Lett. 20 February 2023; 122 (8): 082901. https://doi.org/10.1063/5.0131355
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