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Two-dimensional ferroelectric synaptic devices enabled by diverse coupling mechanisms.

Youna Huang1,2,3, Wei Wang2, Yang Li2

  • 1Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518105, China. licj@sustech.edu.cn.

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|September 19, 2025
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Summary
This summary is machine-generated.

Two-dimensional (2D) van der Waals (vdW) ferroelectric materials enable advanced neuromorphic computing. Their unique coupling mechanisms allow emulation of biological synapses for high-performance, energy-efficient devices.

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Area of Science:

  • Materials Science
  • Nanoscience
  • Computer Engineering

Background:

  • Two-dimensional (2D) van der Waals (vdW) ferroelectric (FE) materials are promising for neuromorphic computing due to their atomic thinness and ferroelectricity.
  • These materials offer advantages like clean surfaces, flexibility, and CMOS compatibility for high-density, energy-efficient, and fast synaptic devices.

Purpose of the Study:

  • To provide a comprehensive review of 2D ferroelectric-based synaptic devices.
  • To focus on the role of coupling mechanisms in achieving synaptic functionality.
  • To offer a structured understanding for designing high-performance, biologically inspired synaptic devices.

Main Methods:

  • Introduction to neuromorphic computing principles and 2D ferroelectric material advantages.
  • Classification of 2D ferroelectric materials based on five key coupling mechanisms.
  • Review of representative studies analyzing coupling mechanisms for synaptic functionality.

Main Results:

  • 2D ferroelectrics exhibit intrinsic polarization that couples with physical phenomena, enabling complex synaptic behaviors.
  • Various coupling mechanisms in 2D FEs can be utilized to emulate synaptic functions.
  • Representative studies demonstrate the application of these mechanisms in synaptic devices.

Conclusions:

  • Coupling mechanisms in 2D ferroelectric materials are crucial for designing advanced synaptic devices.
  • Further research into these coupling mechanisms can lead to breakthroughs in brain-inspired computing.
  • Challenges and future prospects for 2D FE-based synaptic applications are discussed.