Giant magnetoresistance of strong magnet–polymer heterostructures with a wide band gap

Resumo

We present the results of studying the effect of a weak external magnetic field on the conductivity of heterostructures containing a wide-gap polymer layer. A set of experiments is singled out for switching the metal–dielectric conductivity, controlled by a weak magnetic field. Evidence of the reliability and repeatability of key experiments are reviewed, and the effect of possible artifacts on switching of the conductivity in the heterostructures under study is discussed.