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Schematic illustration of strain compensating technique for fabricating self-assembled InAs QWRs in the system.
Typical AFM images of InAs QWRs grown on the matrix in (a) sample 1 and (b) sample 2. The profile curves along the  direction are also shown.
(a, c) Dark field cross-sectional TEM images of InAs QWRs grown on the matrix in sample 1 and sample 2, respectively, along [1–10]; and (b, d) corresponding images along the  of InAs QWRs.
Experimental (004) XRD rocking curves of sample 1 and sample 2.
Statistics of QWRs in samples 1 and 2.
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