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High-resolution (004) x-ray diffraction patterns and simulations for samples E and G, which are 1-μm thick and have SL periods of 12 and 24.6 nm, respectively.
Cross-section electron micrograph of sample G, demonstrating excellent structural quality.
Sb composition as a function of substrate temperature. The squares are samples A to E and the dotted line is a linear fit.
Low-temperature PL spectra at 12 K for two groups of InAs/InAs1− x Sb x SL samples: (a) group I and (b) group II.
Simulated and experimental PL linewidth versus SL period.
Structures, growth conditions, and XRD results of various InAs/InAs1− x Sb x samples; x is the Sb composition and Δa/a is the lattice mismatch.
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