High-performance tunnel-junction selectors with graded tunnel barriers based on five-layer van der Waals heterostructures

Nature Electronics, Published online: 07 September 2026; doi:10.1038/s41928-026-01704-2 Using five vertically stacked van der Waals layers, a tunnel-junction selector can be created that exhibits a nonlinearity above 107, an endurance of more than 1012 cycles, a switching speed of less than 20 ns, minimal temperature dependence and low device-to-device variability.