Magnetic and Resonance Properties of a Low-Dimensional Cobalt–Aluminum Oxide–Germanium Film Tunnel Junction Deposited by Magnetron Sputtering

The temperature behavior of saturation magnetization and the integral signal intensity in electron magnetic resonance spectra is experimentally studied comprehensively using a low-dimensional Al2O3/Ge/Al2O3/Co (aluminum oxide–cobalt–aluminum oxide–germanium) tunnel junction with different deposition velocities ferromagnetic metal (Co) thin layer non-magnetic layers (Al2O3/Ge/Al2O3). cobalt was deposited on aluminum oxide two ways: one cycle creating structure atmospheric injection before layer. thermomagnetic curves revealed appearance minima observed at low temperatures both sides Possible sources precession perturbations can be explained by: influence Al2O3 Al2O3/Co interface; residual gases working chamber atmosphere finely dispersed pellets distributed over film thickness. work offers information great significance terms practical application, for fundamental physics potential applications ultrathin films.