Abstract
We propose another method for domain wall (DW) movement in nanowire geometry. We find that a DW moves to an energy minimum position in order to minimize the Zeeman energy under a nonuniform transverse magnetic field. DW dynamics under a spatially nonuniform transverse magnetic field has been investigated by means of micromagnetic simulations. The nonuniform transverse magnetic field driven DW motion has a superior nature which includes a rigidity of the domain structure during the movement of the DWs in addition to all of the advantages of conventional field driven DW movement. The direction of the DW movement only depends on the magnetization direction inside of the DW itself, not on the one of the domains. Therefore, it is possible to achieve field driven DW motion with rigid domain structures.
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