“…InAs 1−x Sb x epilayer thicknesses of 5.9 m and 4.3 m as listed in Table 1 far exceed the critical thickness values above mentioned, which means strain in the InAs 1−x Sb x heteroepitaxy film is almost completely relaxed. Vegard's law is a widely accepted way to obtain the composition of ternary alloy in the condition of the complete relaxation of strain [13][14][15]. Then the Sb contents of InAs 1−x Sb x epilayers are determined to be x1 = 0.08, x2 = 0.13 according to Vegard's law, which are also consistent with the EDAX results.…”