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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
Published on: April 8, 2018
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Ferroelectric resistive switching behavior in two-dimensional materials/BiFeO3 hetero-junctions
Yang Li1, Xue-Yin Sun, Cheng-Yan Xu
1State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China. cy_xu@hit.edu.cn lzhen@hit.edu.cn.
Nanoscale
|December 5, 2018
Summary
Ferroelectric resistive switching was observed in graphene/BFO and MoS2/BFO heterojunctions. This behavior, influenced by 2D material thickness, offers new possibilities for memory devices.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Integrating 2D materials with ferroelectric thin films creates unique properties.
- Ferroelectric materials exhibit spontaneous electric polarization.
- Two-dimensional materials possess distinct electronic and mechanical characteristics.
Purpose of the Study:
- To investigate ferroelectric resistive switching in graphene/BFO and MoS2/BFO heterojunctions.
- To understand the influence of ferroelectric polarization on interface properties.
- To explore the role of 2D material thickness on switching behavior.
Main Methods:
- Fabrication of graphene/BFO and MoS2/BFO heterojunctions.
- Electrical characterization of resistive switching phenomena.
- Analysis of interface modulation due to ferroelectric polarization.
Main Results:
- Observed ferroelectric resistive switching in both graphene/BFO and MoS2/BFO heterojunctions.
- Switching behavior is attributed to modulation of contact barriers and depletion width.
- Switching characteristics are dependent on the thickness of the 2D materials.
Conclusions:
- Ferroelectric polarization significantly impacts interface properties in 2D/ferroelectric heterojunctions.
- Thickness-dependent electronic properties of 2D materials tune the resistive switching.
- These findings pave the way for novel memristive devices and memory applications.
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