Task: Text Categorization
Input (English): It can be studied at zero temperature on a Bethe lattice, and theoretical approaches to it involve calculations based on the Preisach model. It can be represented via the Landau-Lifshitz equation, and the thermodynamic type is intrinsic in superelastic deformation. It is characteristic of first-order phase transitions, and supercooling generates a thermal curve of this type. Demonstrated in a random-field Ising model, in this phemonenon, ,motion in domain walls generates Barkhausen noise, which is represented as small jumps in loops of this type, and the energy loss due to reversing the magnetization is proportional to the area of loop. For 10 points, what is this phenomenon where the magnetization of a ferromagnetic material remains after the external magnetic field is removed
Output (English): Science