Could pnictide-type superconductivity occur in FeAs/GaAs superlattices?
A recurring feature in the iron pnictide superconductors is the existence of an FeAs layer. Here we use first-principles density functional calculations to examine whether the electronic structure characteristics believed to correlate with superconductivity in the pnictides are reproduced in superlattices containing alternating zincblende structure FeAs/GaAs layers. Such superlattices could offer important advantages in ease of fabrication using MBE techniques and integration with semiconductor devices.
