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Bilayer-based antiferroelectric HfZrO2tunneling junction with high tunneling electroresistance and multilevel nonvolatile memory

  • K. Y. Hsiang
  • , C. Y. Liao
  • , J. H. Liu
  • , J. F. Wang
  • , S. H. Chiang
  • , S. H. Chang
  • , F. C. Hsieh
  • , H. Liang
  • , C. Y. Lin
  • , Z. F. Lou
  • , T. H. Hou
  • , C. W. Liu
  • , M. H. Lee*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The bilayer-based Antiferroelectric Tunneling Junction (AFTJ) with ferroelectric (FE) HfZrO2 (HZO) and dielectric (DE) Al2O3 demonstrates a current ratio of >100×, a TER (tunneling electroresistance) of >50×, multilevel states, >104 sec retention, and a cycling endurance as high as 108. The concept of tunneling current through DE in an antiferroelectric (AFE) system enhances the capacity to modulate the current/TER ratio and makes the AFTJ feasible for low-power crossbar eNVM (embedded nonvolatile memory) applications.

Original languageEnglish
Pages (from-to)1464-1467
Number of pages4
JournalIEEE Electron Device Letters
Volume42
Issue number10
DOIs
Publication statusPublished - 2021 Oct

Keywords

  • Antiferroelectric
  • Ferroelectric
  • HfZrO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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