FACTORS THAT INFLUENCE THE GIANT MAGNETORESISTANCE IN GRANULAR FILMS
金属颗粒薄膜巨磁电阻效应的影响因素

The influence of the particle size and the magnetic deposite on the giant magnetoresistance (GMR) was investigated.Based on the free electron model and spin-dependent scattering theory,the self-energy of the conduction electrons in the granular film system was calculated.In the computing course,we connected the spin-scattering terms with the macroquantity,and abtained the formalism of GMR vs.concentration and GMR vs.size.The simulation curves show that increasing the magnetic concentation and decreasing the particle size can enhance the GMR.