Learning phase transitions in the ferrimagnetic GdFeCo alloy

We present results on the identification of phase transitions in the ferrimagnetic GdFeCo alloy using machine learning. The approach for finding phase transitions in the system is based on the ‘learning by confusion’ scheme, which allows one to characterize phase transitions using universal W -shape. By applying the ‘learning by confusion’ scheme, we obtain 2D W -shaped surface that characterizes a triple phase transition point of the GdFeCo alloy. We demonstrate that our results are in the perfect agreement with the procedure of the numerical minimization of the thermodynamical potential, yet our machine-learning-based scheme has a potential to provide a speedup in the task of the phase transition identification.