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Figure 1
(a) HAADF image of InAs/GaSb T2SL along the [[{\overline 1} 1 0]] zone axis. The magnified images show, from left to right, GaSb buffer, AlSb barrier, GaSb and InAs layers. (b) Anion and (c) cation sublattice images of T2SL obtained by the peak separation method. The lattice vectors, x (out-of-plane) and y (in-plane), in the inset image in panel (b) are used as a reference for strain measurement. The magnified inset image of T2SL in panel (b) shows that the anion atomic columns are well separated from their neighboring atomic columns.

IUCrJ
Volume 5| Part 1| January 2018| Pages 67-72
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517016219