“…1 shows the (4 0 0) 2Â-ω HRXRD scans for Samples S1 (InAs 1−x1 Sb x1 /InAs) and S2 (InAs 1−x2 Sb x2 /InAs 1−x1 Sb x1 /InAs) (x1 < 0.10 < x2). As listed in Table 1, the FWHMs of Samples S1 and S2 range from 270 to 320 , which are much smaller than the reported values [7,8], indicating the high crystalline quality of InAs 1−x Sb x epilayers. The lattice constants of epilayers can be deduced from Bragg diffraction equation.…”