Direct Observation of Domain-Wall Configurations Transformed by Spin Currents

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2005
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Jubert, Pierre-Olivier
Allenspach, Rolf
Bischof, Andreas
Bland, J. Anthony C.
Faini, Giancarlo
Rüdiger, Ulrich
Vaz, Carlos A. F.
Vila, Laurent
Vouille, Carole
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Direct observations of current-induced domain-wall propagation by spin-polarized scanning electron microscopy are reported. Current pulses move head-to-head as well as tail-to-tail walls in submicrometer Fe20Ni80 wires in the direction of the electron flow, and a decay of the wall velocity with the number of injected current pulses is observed. High-resolution images of the domain walls reveal that the wall spin structure is transformed from a vortex to a transverse configuration with subsequent pulse injections. The change in spin structure is directly correlated with the decay of the velocity.

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ISO 690KLÄUI, Mathias, Pierre-Olivier JUBERT, Rolf ALLENSPACH, Andreas BISCHOF, J. Anthony C. BLAND, Giancarlo FAINI, Ulrich RÜDIGER, Carlos A. F. VAZ, Laurent VILA, Carole VOUILLE, 2005. Direct Observation of Domain-Wall Configurations Transformed by Spin Currents. In: Physical Review Letters. 2005, 95, 26601. Available under: doi: 10.1103/PhysRevLett.95.026601
BibTex
@article{Klaui2005Direc-9143,
  year={2005},
  doi={10.1103/PhysRevLett.95.026601},
  title={Direct Observation of Domain-Wall Configurations Transformed by Spin Currents},
  volume={95},
  journal={Physical Review Letters},
  author={Kläui, Mathias and Jubert, Pierre-Olivier and Allenspach, Rolf and Bischof, Andreas and Bland, J. Anthony C. and Faini, Giancarlo and Rüdiger, Ulrich and Vaz, Carlos A. F. and Vila, Laurent and Vouille, Carole},
  note={Article Number: 26601}
}
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