Specific features of magnetooptical spectra of Co/SiO2 hybrid multilayers

Magnetooptical study of granular silicon oxide films with embedded CoNbTa ferromagnetic particles

“…This interest can be attributed primarily to the giant magnetoresistance (GMR) effect observed in these materials [1]. In addition, nanocomposites exhibit a number of other unusual magnetic, electrical, optical, and magnetooptical properties, among which one can place the possibility of varying the electrical resistivity within a broad range, enhancement of optical nonlinearities [2], a correlation between the magnetic transport and nonlinear optical properties [3], the high magnetorefractive effect [4], and high electromagnetic-radiation absorption in the rf and microwave regions [5]. Although some physical mechanisms responsible for these phenomena still remain unclear, granular nanocomposites can be confidently classed among materials promising for use in developing reading heads and magnetooptical storage components [6,7].…”