Selective domain wall depinning by localized Oersted fieldsand Joule heating

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2008
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Boulle, Olivier
Zinser, Fabian
Backes, Dirk
Heyderman, Laura J.
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Applied Physics Letters. 2008, 93, 132503. Available under: doi: 10.1063/1.2990629
Zusammenfassung

Using low temperature magnetoresistance measurements, the possibility to selectively move a domain wall locally by applying current pulses through a Au nanowire adjacent to a permalloy element is studied. We find that the domain wall depinning field is drastically modified with increasing current density due to the Joule heating and the Oersted field of the current, and controlled motion due to the Oersted field without any externally applied fields is achieved. By placing the domain wall at various distances from the Au wire, we determine the range of the Joule heating and the Oersted field and both effects can be separated.

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ISO 690ILGAZ, Dennis, Mathias KLÄUI, Lutz HEYNE, Olivier BOULLE, Fabian ZINSER, Stephen KRZYK, Mikhail FONIN, Ulrich RÜDIGER, Dirk BACKES, Laura J. HEYDERMAN, 2008. Selective domain wall depinning by localized Oersted fieldsand Joule heating. In: Applied Physics Letters. 2008, 93, 132503. Available under: doi: 10.1063/1.2990629
BibTex
@article{Ilgaz2008Selec-9068,
  year={2008},
  doi={10.1063/1.2990629},
  title={Selective domain wall depinning by localized Oersted fieldsand Joule heating},
  volume={93},
  journal={Applied Physics Letters},
  author={Ilgaz, Dennis and Kläui, Mathias and Heyne, Lutz and Boulle, Olivier and Zinser, Fabian and Krzyk, Stephen and Fonin, Mikhail and Rüdiger, Ulrich and Backes, Dirk and Heyderman, Laura J.},
  note={Article Number: 132503}
}
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