The influence of mechanical tensile deformation on the magnetoresistance of a magnetic straintronics nanostructures

The results of experimental and theoretical study of magnetic straintronics nanostructure Ta (5 nm)/FeNiCo (20 nm)/CoFe (10 nm)/Ta (5 nm) are presented. The dependence of magnetoresistance on the value of external magnetic field strength under mechanical tensile deformation is determined. A theoretical model explaining the features of this experimental dependence is proposed. In particular, the experimentally established asymmetry of magnetoresistance change under compression and tension deformation is explained.