Self-Polarized Schottky Ferroelectric Diode

On/off ratio 10⁶

By tailoring self-polarization via Schottky barrier control, the BiFeO₃ ferroelectric diode enables symmetric resistive switching with fast speed and ultralow write current.

Huang, Biaohong · Zhao, Xuefeng · Li, Xiaoqi · Li, Lingli · Xie, Zhongshuai · Wang, Di · Feng, Dingshuai · Jiang, Yuxuan · Liu, Jingyan · Li, Yizhuo · Yuan, Guoliang · Han, Zheng · Paudel, Tula R. · Xing, Guozhong · Hu, Weijin · Zhang, Zhidong

ACS Nano 2023

Specifications

operation speed

{'zh': '约30', 'en': '~30'} ns

writing current density

{'zh': '约132', 'en': '~132'} A/cm²

Advantages

on/off ratio of ~1.1 × 10⁶

achieved in SrRuO₃/BiFeO₃/Pt ferroelectric diodes