Domain Wall Propagation in Wavy Ferromagnetic Nanowire

Domain Wall Propagation in Wavy Ferromagnetic Nanowire

We have investigated magnetic domain wall propagation behavior in wavy nanowires using micromagnetic simulation. The wire width is set to have sinusoidal distortion with variation of spatial frequency and phase. We have analyzed domain wall speed under a constant external field with variation of wav...

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Veröffentlicht in:IEEE transactions on magnetics 2009-10, Vol.45 (10), p.3926-3929
Hauptverfasser: Piao, H.-G., Shim, J.-H., Lee, S.-H., Djuhana, D., Oh, S.-K., Yu, S.-C., Kim, D.-H.
Format: Artikel
Sprache:eng
Schlagworte:
Distortion
Domain wall propagation
Domain walls
Electric breakdown
ferromagnetic wire
Frequency
Geometry
Magnetic domain walls
Magnetism
Magnetoelectronics
micromagnetic simulation
Micromagnetics
Motion control
Nanocomposites
Nanomaterials
Nanostructure
Nanowires
Periodic structures
Physics
Walls
Wave propagation
Wire
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Beschreibung
Zusammenfassung:We have investigated magnetic domain wall propagation behavior in wavy nanowires using micromagnetic simulation. The wire width is set to have sinusoidal distortion with variation of spatial frequency and phase. We have analyzed domain wall speed under a constant external field with variation of wavy geometry. Interestingly, with introduction of proper wavy geometry, domain wall speed becomes faster than the speed of domain wall in a straight wire, where a periodic change of domain wall inner structure has been observed with suppression of vortex structure formation.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2009.2021668