Indirect interaction of magnetic domain walls



We calculate the electron-mediated exchange interaction between two domain walls in magnetic wires. This corresponds to the equilibrium regime and, therefore, the interaction can be additionally controlled by an electric current. The ex- change interaction is long ranged and oscillates as a function of the distance between the walls. It also depends oscillatory on the polarization angle of the walls, having the maximum value for collinear polarization. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)