Topological Insulator Synapse

Ultralow-power artificial synapse

Exploiting the high spin-orbit torque efficiency of (BiSb)2Te3, this device achieves neuromorphic functionality at current densities 1-2 orders of magnitude lower than conventional heavy metals.

Guo, Xi · Zeng, Junwei · Jijun, Yun · Zuo, Yalu · Yu, Guoqiang · Wu, Hao · Xi, Li · Cui, Baoshan

ACS Applied Materials & Interfaces 2025

Specifications

激活电流密度

{'zh': '1.8×10^5', 'en': ''} A/cm²

手写数字识别准确率

{'zh': '92.8', 'en': ''} %

Advantages

Spin Hall angle θ_SH = 1.11