Figure 3
From: High Curie temperature ferromagnetic structures of (Sb2Te3)1−x(MnSb2Te4)x with x = 0.7–0.8
Measurements of a selection of samples from group 2 grown with Mn BEP ratios of 0.06–0.10 and having 70–80% SLs. (a) Hall resistance (Rxy) as a function of the magnetic field B measured at 10 K. (b) Temperature dependent Rxy plots taken at 0.02 T, offset to clearly show their trends. The values of the Mn BEP ratio and the %SLs are given, as well as the TC2 values, color coded, for each plot. The black line is the 0Ω line for each plot. (c) Plot of Curie temperature as a function of the value of y in QLs of composition Sb2−yMnyTe3 calculated for our samples as described in the text. Theoretically predicted values assuming two different types of Mn distributions: random and cluster, adapted from Vergniory et al.29 are given for comparison.
