Abstract:
Giant magnetoresistance (GMR) was known to occur in metallic bilayers and granular materials. In 1993, GMR was also found to occur in thin films of manganates of the formula Lal(1-x)A(x)MnO(3) (A=alkaline earth metal). Since then, there has been intense research activity relating to the GMR of rare earth manganates and other oxides.
