Quantitative determination of vortex core dimensions in head-to-headdomain walls using off-axis electron holography

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APL92_112502_2008.pdf
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2008
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Backes, Dirk
Kasama, Takeshi
Dunin-Borkowski, Rafal E.
Feinberg, Joshua
Harrison, Ralph J.
Heyderman, Laura J.
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Applied Physics Letters. 2008, 92, 112502. Available under: doi: 10.1063/1.2829601
Zusammenfassung

In this paper, we present a complete three-dimensional characterization of vortex core spin structures, which is important for future magnetic data storage based on vortex cores in disks and in wires. Using electron holography to examine vortices in patterned Permalloy devices we have quantitatively measured the in-plane and out-of-plane magnetization of a vortex core. Observed core widths and integrated phase shifts agree well with those derived from micromagnetic simulations. α

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ISO 690JUNGINGER, Friederike, Mathias KLÄUI, Dirk BACKES, Stephen KRZYK, Ulrich RÜDIGER, Takeshi KASAMA, Rafal E. DUNIN-BORKOWSKI, Joshua FEINBERG, Ralph J. HARRISON, Laura J. HEYDERMAN, 2008. Quantitative determination of vortex core dimensions in head-to-headdomain walls using off-axis electron holography. In: Applied Physics Letters. 2008, 92, 112502. Available under: doi: 10.1063/1.2829601
BibTex
@article{Junginger2008Quant-5068,
  year={2008},
  doi={10.1063/1.2829601},
  title={Quantitative determination of vortex core dimensions in head-to-headdomain walls using off-axis electron holography},
  volume={92},
  journal={Applied Physics Letters},
  author={Junginger, Friederike and Kläui, Mathias and Backes, Dirk and Krzyk, Stephen and Rüdiger, Ulrich and Kasama, Takeshi and Dunin-Borkowski, Rafal E. and Feinberg, Joshua and Harrison, Ralph J. and Heyderman, Laura J.},
  note={Article Number: 112502}
}
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