Field-controlled domain wall pinning-depinning effects in ferromagnetic nanowire-nanoparticles system

Details Field-controlled domain wall pinning-depinning effects in ferromagnetic nanowire-nanoparticles system Field-controlled domain wall pinning-depinning effects in ferromagnetic nanowire-nanoparticles system

2011-06-17

arxiv.org/abs/1106.3420v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 11 figures

Scientific paper

We represent the results of micromagnetic modeling and experimental magnetic force microscopy investigations of domain wall (DW) pinning-depinning effects in the hybrid systems consisting of ferromagnetic nanowire (NW) and two ferromagnetic nanoparticles (NPs). It was demonstrated that the special NW-NPs configuration including the NW with DW nucleating bulb at one end and two-NP gate enables the realization of controlled DW pinning-depinning based on switching of magnetization in NPs subsystem. The algorithm of external driving field manipulation and independent NPs switching, which allow one to develop a new type of magnetic logic cells, is proposed.

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