Direct observation of high velocity current induced domain wall motion

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2010_ApplPhysLet_Direct.pdf
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2010
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Rhensius, Jan
Bisig, André
Punke, P.
Heyderman, Laura Jane
Le Guyader, Loic
Nolting, Frithjof
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Applied Physics Letters. 2010, 96, 32504. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3291067
Zusammenfassung

We study fast vortex wall propagation in Permalloy wires induced by 3 ns short current pulses with sub 100 ps rise time using high resolution magnetic imaging at zero field.We find a constant domain wall displacement after each current pulse as well as current induced domain wall structure changes, even at these very short timescales. The domain wall velocities are found to be above 100 m/s and independent of the domain wall spin structure. Comparison to experiments with longer pulses points to the pulse shape as the origin of the high velocities.

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ISO 690HEYNE, Lutz, Jan RHENSIUS, André BISIG, Stephen KRZYK, P. PUNKE, Mathias KLÄUI, Laura Jane HEYDERMAN, Loic LE GUYADER, Frithjof NOLTING, 2010. Direct observation of high velocity current induced domain wall motion. In: Applied Physics Letters. 2010, 96, 32504. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3291067
BibTex
@article{Heyne2010Direc-9208,
  year={2010},
  doi={10.1063/1.3291067},
  title={Direct observation of high velocity current induced domain wall motion},
  volume={96},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Heyne, Lutz and Rhensius, Jan and Bisig, André and Krzyk, Stephen and Punke, P. and Kläui, Mathias and Heyderman, Laura Jane and Le Guyader, Loic and Nolting, Frithjof},
  note={Article Number: 32504}
}
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