The University of Southern California has developed a memory device based on a memristor that can operate at 700 °C - higher than the melting point of lava. By comparison, conventional chips fail at 200 °C. The new development shows no signs of wear even under such extreme conditions.

Stability is provided by a special three-layer structure: the top layer of tungsten, the middle layer of hafnium oxide and the bottom layer of graphene thick in one atom. This combination blocks the short circuit and movement of metal atoms that usually ruin electronics in high heat. Tests showed that the chip stored data for more than 50 hours without overwriting, withstood a billion switching cycles and consumed only 1.5 volts. The researchers were never able to bring the device to a standstill - the laboratory equipment was disrupted.

This discovery allows the creation of computational systems for geothermal drilling, nuclear reactors and space missions (such as landing on Venus).