Title
QuantumCAT
Technique
Aberration Corrected Scanning Transmission Electron Microscopy (AC-STEM)
Description
AlSb-GaSb quantum wells show a Catalonia nanoflag, atom by atom, when employing temperature color scales. This occurs due to the Z-contrast of HAADF, which allows imaging atomic columns by weighting their intensity according to their atomic number.

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Technical specifications
TITAN, 300 kV, HAADF STEM imaging mode
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