New York: Magnets may soon act as wireless cooling agents for your refrigerators, laptops and other devices if a theory propounded by researchers at Massachusetts Institute of Technology in the US finds application.

The theory describes the motion of magnons - quasi-particles in magnets that are collective rotations of magnetic moments, or "spins". When exposed to a magnetic field gradient, magnons may be driven to move from one end of a magnet to another, carrying heat with them and producing a cooling effect, the study said.