Joy Y. Cheng, Daniel P. Sanders, et al.
SPIE Advanced Lithography 2008
Magnetic domain walls have been studied in micrometer-sized Fe 20Ni80 elements containing geometrical constrictions by spin-polarized scanning electron microscopy and numerical simulations. By controlling the constriction dimensions, the wall width can be tailored and the wall type modified. In particular, the width of a 180° Néel wall can be strongly reduced or increased by the constriction geometry compared with the wall in unconstrained systems.