Explanation

Also known as curie point, magnetic transition point. From the point of view of physics, the Curie temperature is the critical temperature for the transformation of matter from permanent magnetism to induced magnetism. The interior of ferromagnetic and ferrimagnetic materials contains a large number of magnetic domain structures with local magnetic moment oriented orientation below the Curie temperature, showing macroscopic magnetism. These magnetic domain are formed by the directional arrangement of magnetic magnetic moment of an atom in the materials. The magnetic moment of an atom is derived from the orbital magnetic moment and spin magnetic moment of its extranuclear electrons. When the temperature is higher than the curie point, the orientation of each magnetic moment of an atom becomes completely disordered due to thermal movement, and the magnetic domain structure disappears, resulting in the loss of permanent magnetism of materials. From the perspective of materials science, Curie temperature is the critical point of transformation from ferromagnetic and ferromagnetic materials to paramagnetic materials. With the increase of temperature, there is also a critical point of transformation from anti iron materials to paramagnetic materials, which is called Neel temperature temperature.

Classification