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Multi-functional polymorphic memory based on 2D ferroelectric tunnel junctions

delete2025-09-30
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OA
AI
M
Md Abdullah-Al Kaiser *
K
Kayode Oluwaseyi Adebunmi
C
Chen Shao
Y
Yulu Mao
Y
Ying Wang
A
Akhilesh Jaiswal
DOI:10.1038/s41699-025-00595-9delete
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Abstract

Abstract

En 中文
In modern data-intensive applications, the segmentation of memory and processors leads to reduced throughput, lower energy efficiency, and increased latency. Functional memory systems address this by enabling operations beyond basic read-write tasks within memory arrays, as in in-memory computing (IMC). Non-volatile memories further enhance efficiency by storing data without static power loss. Of particular interest are 2D ferroelectric tunnel junctions (FTJs), such as those based on MoS2, due to their compact size, high ON–OFF ratios, and CMOS compatibility. In this work, we propose a novel memory design using MoS2-based FTJs that reliably store data via ferroelectric polarization and support multiple in-memory functions. These include Boolean logic, batch reads, variation-robust self-referencing reads, and reconfigurable content-addressable memory functionality through peripheral circuit changes. We validate these polymorphic behaviors through measured characteristics of fabricated 2D MoS2-FTJs and simulations using the GlobalFoundries’ 22 nm silicon-on-insulator technology node.

Journal

npj 2D Materials and Applications cover
npj 2D Materials and Applications
IF:
8.8
Papers:
756
Citations:
4.9K

Organization

U
University of Wisconsin–Madison
Scholars:
776
Papers: 333
Citations: 0