Temperature-dependent magnetization in a ferromagnetic bilayer consisting of two materials with different Curie temperatures

A structure-dependent self-consistent mean-field model has been used to calculate the temperaturedependent magnetization in ferromagnetic bilayers that consist of two materials with different Curie temperatures. The magnetization versus temperature curves fSsTdg are found to be structure sensitive among the bilayer systems with simple cubic, face-centered-cubic, and body-centered-cubic structures. The Curie temperature sTcd enhancement of the systems due to the interface exchange coupling is discussed quantitatively as a function of bilayer structure as well as the interface coupling strength. The interface effect on the layerdependent magnetization curves SisTd is discussed.