Planar hybrid superlattices by compression of rolled-up nanomembranes

Abstract

Hybrid metal/semiconductor superlattices are obtained by the controlled compression of rolled-up metal/semiconductor nanomembranes. The planar superlattice maintains the crystalline quality of the semiconductor and the polycrystalline texture of the metal, allowing the integration of these materials into a multilayer system that cannot be produced by any direct deposition procedure. The superlattice consists of two symmetrically inverted multilayer stacks splitted by a metallic mirror plane. Additional intensity peaks in x-ray reflectivity confirm the periodic structure created by the roll up and compression of nanomembranes.