Engineering and Technology

Greatly enhanced tunneling electroresistance in ferroelectric tunnel junctions with a double barrier design

W. Xiao, X. Zheng, et al.

This groundbreaking study by Wei Xiao and colleagues unveils a double barrier design for ferroelectric tunnel junctions, achieving a remarkable tunneling electroresistance ratio of 2.210 × 10⁶. With the capability to independently control polarization across barriers, this innovation presents exciting possibilities for multi-state memory technology.

00:00

Playback language: English

Index

Abstract

This paper proposes a double barrier design for ferroelectric tunnel junctions (FTJs) to enhance tunneling electroresistance (TER). A Pt/BaTiO3/LaAlO3/Pt/BaTiO3/LaAlO3/Pt double barrier FTJ (DB-FTJ) model is designed and studied using density functional calculations. The DB-FTJ exhibits a giant TER ratio of 2.210 × 10⁶, significantly larger than single barrier FTJs. It also features an ultra-low resistance area product (0.093 kΩµm²) in the high conductance state. Independent polarization control of the two barriers allows for four resistance states, making DB-FTJs promising for multi-state memory applications.

Publisher

npj Computational Materials

Published On

Aug 14, 2023

Authors

Wei Xiao, Xiaohong Zheng, Hua Hao, Lili Kang, Lei Zhang, Zhi Zeng

Related Publications

Explore these studies to deepen your understanding of the subject.

Medicine and Health

Efficacy of green jackfruit flour as a medical nutrition therapy replacing rice or wheat in patients with type 2 diabetes mellitus: a randomized, double-blind, placebo-controlled study

A. G. Rao, K. S. Naik, et al.

Computer Science

Parallel synaptic design of ferroelectric tunnel junctions for neuromorphic computing

T. Moon, H. J. Lee, et al.

Medicine and Health

The effects of omega 3 fatty acids on the serum concentrations of pro inflammatory cytokines and depression status in patients with bipolar disorder: A randomized double-blind controlled clinical trial

H. Eslahi, M. Shakiba, et al.

Medicine and Health

Phage-microbe dynamics after sterile faecal filtrate transplantation in individuals with metabolic syndrome: a double-blind, randomised, placebo-controlled clinical trial assessing efficacy and safety

K. Wortelboer, P. A. D. Jonge, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny