Neel Temperature

Neel temperature is the temperature at which certain magnetic materials, called antiferromagnets, transition from an ordered magnetic state to a disordered one. In antiferromagnets, the magnetic moments of atoms align in opposite directions, canceling each other out. When cooled below the Neel temperature, this order is maintained; when heated above it, thermal energy disrupts the alignment, leading to a loss of magnetic order. Essentially, the Neel temperature marks the point where the material shifts from magnetically ordered to disordered as temperature increases.