A study was made of the electronic properties of single twin boundaries and twinning superlattices. The results were compared with those which had previously been obtained for such structures in diamond- and zincblende-type materials, and appreciable differences were noted. It was found that twinning superlattices in the present material could have band-gaps that were significantly wider or narrower than that of the homogeneous material; depending upon whether the twin interface was occupied by anion or cation atoms.

Z.Ikonic, G.P.Srivastava, J.C.Inkson: Superlattices and Microstructures, 1995, 17[4], 393-6