It was found that Zn-induced mixing mainly affected the cation sub-lattice of the superlattice and was consistent with a so-called interstitial kick-out mechanism. The Zn-diffused superlattice remained sharply defined. The absence of strain-related growth defects in the un-strained starting material permitted the formation of a high-quality strained-layer superlattice by mixing.

S.A.Schwarz, P.Mei, T.Venkatesan, R.Bhat, D.M.Hwang, C.L.Schwartz, M.Koza, L.Nazar, B.J.Skromme: Applied Physics Letters, 1988, 53[12], 1051-3