0D van der Waals interfacial ferroelectricity

Yue Niu, Lei Li, Zhiying Qi, Hein Htet Aung, Xinyi Han, Reshef Tenne, Yugui Yao, Alla Zak and Yao Guo ()
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Yue Niu: School of Physics, Beijing Institute of Technology
Lei Li: School of Physics, Beijing Institute of Technology
Zhiying Qi: School of Physics, Beijing Institute of Technology
Hein Htet Aung: School of Physics, Beijing Institute of Technology
Xinyi Han: School of Physics, Beijing Institute of Technology
Reshef Tenne: Weizmann Institute of Science
Yugui Yao: School of Physics, Beijing Institute of Technology
Alla Zak: Holon Institute of Technology
Yao Guo: School of Physics, Beijing Institute of Technology

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract The dimensional limit of ferroelectricity has been long explored. The critical contravention is that the downscaling of ferroelectricity leads to a loss of polarization. This work demonstrates a zero-dimensional ferroelectricity by the atomic sliding at the restrained van der Waals interface of crossed tungsten disufilde nanotubes. The developed zero-dimensional ferroelectric diode in this work presents not only non-volatile resistive memory, but also the programmable photovoltaic effect at the visible band. Benefiting from the intrinsic dimensional limitation, the zero-dimensional ferroelectric diode allows electrical operation at an ultra-low current. By breaking through the critical size of depolarization, this work demonstrates the ultimately downscaled interfacial ferroelectricity of zero-dimensional, and contributes to a branch of devices that integrates zero-dimensional ferroelectric memory, nano electro-mechanical system, and programmable photovoltaics in one.

Date: 2023
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DOI: 10.1038/s41467-023-41045-8

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