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This thesis briefly uses 2D scattering theory and Born approximation of scattering in 2D with account of the interaction of magnetic moment of an electron and the nanomagnet. Since the electrons are fermions it has half integral spin either up or down. Due to this,the scattering amplitudes in this problem are the component spinors. The electrons scattered by the nanomagnet splits into two parts with opposite direction of spins. They are calculated as functions of the electron spin orientation, the electron energy and the scattering angle. In general this is the problem of elastic scattering i.e we don't consider when the interacting particles are accompanied by a change of internal states. If we consider the problem as inelastic again it will be another area of research. It is known that the great mystery in electronics is spin controlling method. So, this thesis considers 2D scattering of an electron by a magnetized nanoparticle as one of controlling method of spin current. Finally theory and review literature parts are also carefully referred from different sources as described in reference part.