Investigation of the Nonlinear Optical Frequency Conversion in Ultrathin Franckeite Heterostructures

Alisson R. Cadore, Alexandre S. M. V. Ore, David Steinberg +4

Layered franckeite is a natural superlattice composed of two alternating layers of different compositions, SnS${}_2$- and PbS-like. This creates incommensurability between the two sp…