Huge magnetoresistance of structures based on nonferromagnetic wideband polymers

The phenomenon of huge magnetoresistance in structures of the ferromagnetic metal-polymer insulator (FM-PI) type is considered in comparison to other types of magnetoresistance. Similarities and differences between the effects of huge magnetoresistance at an FM-PI interface and on an array of paramagnetic nanoparticles are shown. Conclusions are drawn as to the decisive role of change in the magnetic field of tunneling conditions of a charge through a potential barrier.