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Magnetization reversal in cobalt antidot arrays

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2006_PhysRevB_Magnetization.pdf
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2006

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Heyderman, Laura Jane
Nolting, Frithjof
Backes, Dirk
Czekaj, S.
Lopez-Diaz, L.
Vaz, Carlos A. F.
Bland, J. Anthony C.
Matelon, R. J.
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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-126501
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https://doi.org/10.1103/PhysRevB.73.214429
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Physical Review B. 2006, 73, 214429. Available under: doi: 10.1103/PhysRevB.73.214429

Zusammenfassung

We have carried out a detailed study of the magnetic switching in square lattice cobalt antidot arrays with periods ranging from 2 μm down to 200 nm (antidot size=antidot separation). Magneto-optical Kerr effect measurements show first a small change in the magnetization due to a reversible rotation of the magnetic spins in the antidot rows, followed by a large change due to reversal of the antidot array columns parallel to the applied field. Employing x-ray photoemission electron microscopy and transmission x-ray microscopy, the latter irreversible process was observed as a nucleation and propagation of discrete domain chains. The propagating chain ends are blocked by perpendicular chains present in the antidot rows via various mechanisms revealed by micromagnetic simulations.

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530 Physik

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ISO 690HEYDERMAN, Laura Jane, Frithjof NOLTING, Dirk BACKES, S. CZEKAJ, L. LOPEZ-DIAZ, Mathias KLÄUI, Ulrich RÜDIGER, Carlos A. F. VAZ, J. Anthony C. BLAND, R. J. MATELON, Ulrich G. VOLKMANN, P. FISCHER, 2006. Magnetization reversal in cobalt antidot arrays. In: Physical Review B. 2006, 73, 214429. Available under: doi: 10.1103/PhysRevB.73.214429
BibTex
@article{Heyderman2006Magne-4708,
  year={2006},
  doi={10.1103/PhysRevB.73.214429},
  title={Magnetization reversal in cobalt antidot arrays},
  volume={73},
  journal={Physical Review B},
  author={Heyderman, Laura Jane and Nolting, Frithjof and Backes, Dirk and Czekaj, S. and Lopez-Diaz, L. and Kläui, Mathias and Rüdiger, Ulrich and Vaz, Carlos A. F. and Bland, J. Anthony C. and Matelon, R. J. and Volkmann, Ulrich G. and Fischer, P.},
  note={Article Number: 214429}
}
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