Memristor Chip Survives 700°C

A University of Southern California team built a memristor using tungsten, hafnium oxide and a graphene interface that continued functioning at 700°C — and the authors say 700°C was the limit of their equipment, not the device. The graphene layer prevents tungsten atoms from diffusing through the ceramic, stopping the usual heat‑induced shorting that kills conventional devices. — If reproducible at scale, heat‑resistant memory/computing could let spacecraft operate directly on Venus’s surface, change mission architectures, reduce thermal‑management costs in industry, and create new material‑supply and geopolitical stakes.