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Figure 5
The STEM-EDX results obtained on the dual-band sample are shown in (a) with Hg, Cd and Zn local concentration represented in green, red and blue. The five zones of the sample are perfectly visible: the substrate and its abrupt interface with the MWIR layer of constant composition, the barrier with both its graded interface, the lattice-matched LWIR layer of constant composition and its transition to the capping layer whose composition varies continuously from low to high Cd content. In (b), the red and green curves represent the micro-diffraction derived strain and tilt, respectively, while the blue curve shows results of the calculation of the strain using STEM-EDX data to evaluate the local HgCdZnTe lattice parameter. Note that the colors in (a) and (b) do not represent the same values.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 1| January 2021| Pages 181-187
https://doi.org/10.1107/S1600577520013211
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