Figure 13

Calculated critical thickness h_c of the InGaN layer as a function of the In content for nucleation of misfit dislocations by glide of 1/3<110>||{101} threading dislocations according to the Matthews-Blakeslee model. On the right, three curves are shown, representing threading segments with different edge components (pure screw; segment running straight in the slip plane; large edge component). For the calculation of the fourth curve, the Peierls force has been neglected.

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© 1998 The Materials Research Society