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Probing the time-dependent switching probability of individual patterned magnetic islands

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2011

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Hellwig, Olav
Dobisz, Elizabeth
Albrecht, Martin
Grobis, Michael

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https://doi.org/10.1063/1.3540574
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Journal of Applied Physics. American Institute of Physics (AIP). 2011, 109(7), 07B905. ISSN 0021-8979. eISSN 1089-7550. Available under: doi: 10.1063/1.3540574

Zusammenfassung

We show switching probability measurements of individual bits of a bit patterned media in the highly inhomogeneous write field of a recording head. The behavior of the switching probability as a function of the applied field pulse width t deviates from a simple Arrhenius—Néel model for the magnetization reversal. The data agree well with an extended model that assumes a normal distribution of energy barriers. We compare the extracted energy barrier distribution to the switching field distribution in a uniform perpendicular magnetic field measured at long time scales.

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530 Physik

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ISO 690SPRINGER, Felix, Olav HELLWIG, Elizabeth DOBISZ, Martin ALBRECHT, Michael GROBIS, 2011. Probing the time-dependent switching probability of individual patterned magnetic islands. In: Journal of Applied Physics. American Institute of Physics (AIP). 2011, 109(7), 07B905. ISSN 0021-8979. eISSN 1089-7550. Available under: doi: 10.1063/1.3540574
BibTex
@article{Springer2011-04Probi-51386,
  year={2011},
  doi={10.1063/1.3540574},
  title={Probing the time-dependent switching probability of individual patterned magnetic islands},
  number={7},
  volume={109},
  issn={0021-8979},
  journal={Journal of Applied Physics},
  author={Springer, Felix and Hellwig, Olav and Dobisz, Elizabeth and Albrecht, Martin and Grobis, Michael},
  note={Article Number: 07B905}
}
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