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Gille, Peter; Hollatz, M.; Kleessen, H. and Schenk, M. (1994): Axially linear slopes of composition for “delta” crystals. In: Journal of Crystal Growth, Vol. 139, No. 1-2: pp. 165-171 [PDF, 415kB]

Abstract

“Delta” crystals are solid solutions of miscible materials with large lattice parameter differences which contain high concentration gradients in one direction (parallel to a lattice plane strongly diffracting X-rays). The system GaSb-InSb has been chosen as suitable for study. By means of a “gradient projection method”, the growth of nearly linear composition profiles with relatively steep slopes of the lattice parameter (up to (Δa/ ) / Δz = 8.3% cm-1), adjustable by the temperature gradient, have been performed. However, the grown ingots were not monocrystalline due to the use of too high a growth rate.

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