Abstract
A Berry curvature investigation has been made on the magnetic modulated structures such as domain walls (DWs) and helimagnetic spin configurations. Results of the present study show that the geometry of the spin configuration and the direction of the magnetic field creating the spin precession are of crucial importance in the magnitude of obtained electromotive force. It has recently been recognized that the Rashba coupling increases significantly the electromotive force when this coupling is high enough to give predominant contribution in the magnetization dynamics. However, in the opposite case when the Rashba interaction has negligible contribution in the magnetization dynamics it was shown that the magnitude of the electromotive force decreases slightly by increasing the Rashba coupling strength. Therefore the effect of the Rashba interaction in the electromotive force of the moving DWs rests largely on the strength and also effectiveness of this interaction in the magnetization dynamics.
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