strained-layer superlattice

strained-layer superlattice

[′strānd ¦lā·ər ¦sü·pər′lad·əs] (electronics) A structure consisting of alternating layers of two different semiconducting materials, each several nanometers thick, in which a mismatch between the lattice spacings of the two materials of up to several percent is accommodated by elastic strains in the thin layers without the generation of mismatch defects.