Current-in-plane magnetoresistance in a magnetic sandwich structure with the interface inter-diffusional roughness

摘要

By introducing a thin transition sublayer to describe the interface structure with large inter-diffusion, the impurities and other defects at it, current-in-plane (CIP) giant magnetoresistance (GMR) is calculated based on the Kubo formalism in real spaces. The oscillations of CIP GMR versus the thicknesses of various layers are predicted due to the quantum size effect. The contribution of the interface inter-diffusional roughness on the GMR effect is discussed with the variations of the thicknesses of ferromagnetic and nonmagnetic layers. [References: 30]