Figure 1: (a) Relative magnetizations of the Mn sublattices as a
function of temperature assuming exchange interactions derived from
the paramagnetic (DLM) state of the ideal tetragonal CuMnAs. (b)
The magnetic susceptibility as a function of the temperature for such
CuMnAs alloy. (c) The temperature dependence of the heat capacity
for this system. In the inset we show the Binder cumulants for N
= 16, 20, and 24 as a function of the temperature. The N´eel temperature
corresponds to a common intersection of all three curves
(495 K).
