The Operation of Lithium Niobate Ferroelectric Domain Wall Memory at 673 K

Oil/gas exploration, aviation, and aerospace systems require the memory to be operated at high temperatures. It is reported that lithium niobate domain wall memory has good performance at 453 K. Meantime, the memory has excellent size scalability with the fabrication compatible with traditional CMOS processes. Here, we increased the operating temperature to 673 K, and found the excellent fatigue resistance performance. After baking at the vacuum condition, the memory device exhibits excellent thermal stability without degradation of obvious electrical properties. This highlights the advantage of the lithium niobate domain wall memory for the application at high-temperature conditions.