 The catalyzing effect comes from a partial restriction (dimensional reduction) of the motion of charged particles in the directions perpendicular to the direction of the magnetic field.Commonly, the magnetic catalysis is specifically associated with spontaneous breaking of flavor or chiral symmetry in quantum field theory, which is enhanced or triggered by the presence of an external magnetic field.The underlying mechanism behind magnetic catalysis is the dimensional reduction of low-energy charged spin-1/2 particles.