transition of non ferromagnetic state to ferromagnetic state is phase transition of
Answers
Answer:
Here the phase transition occurs when the magnetic moment goes from zero to non-zero. It is from the paramagnetic phase to the ferromagnetic phase. Another example of a phase transition is when water freezes to ice, here we go from a liquid to a crystal with a crystal lattice. The lattice appears suddenly.
Answer:
The Answer is mentioned below
Explanation:
The transition from non-ferromagnetic state to the ferromagnetic state, called the phase transition of second kind, is associated with some kind of change in the symmetry of the lattice: for example, in ferromagnetism the symmetry of the spins is involved.
A system at high temperatures can be in the paramagnetic state and can then undergo a second order phase transition into a ferromagnetic state at some temperature TC. The order parameter is the magnetization Mz. It increases continuously from zero as T drops below TC.
The existence of magnetic order (collective magnetism) appearing in materials below a particular ordering temperature (e.g., the Curie temperature, TC, or the Neel temperature, TN) points to a class of physical phenomena which are described as magnetic phase transitions.