Domain wall velocity measurement in permalloy nanowires with X-ray magnetic circular dichroism imaging and single shot Kerr microscopy

Moore, Thomas; Kläui, Mathias; Heyne, Lutz; Möhrke, Philipp; Backes, Dirk; Rhensius, Jan; Rüdiger, Ulrich; Heyderman, Laura J.; Mentes, Tevfik Onur; Niño, M. Á.; Locatelli, A.; Potenza, A.; Marchetto, H.; Cavill, Stuart; Dhesi, Sarnjeet S.

Domain wall velocity measurement in permalloy nanowires with X-ray magnetic circular dichroism imaging and single shot Kerr microscopy

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Datum

2009

Autor:innen

Moore, Thomas

Kläui, Mathias

Heyne, Lutz

Möhrke, Philipp

Backes, Dirk

Rhensius, Jan

Rüdiger, Ulrich

Heyderman, Laura J.

Mentes, Tevfik Onur

Niño, M. Á.

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Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Magnetism and Magnetic Materials. 2009, 322(9-12), pp. 1347-1352. ISSN 0304-8853. Available under: doi: 10.1016/j.jmmm.2009.06.048

Zusammenfassung

Domain walls (DWs) propagated along nanoscale magnetic wires by current or field pulses could potentially be used for data storage or logic applications, but the understanding of the DW dynamics, particularly under the influence of spin-polarized current, is incomplete. Measuring the velocity can give insights into the physics of the DW motion. Here we demonstrate DW velocity measurements in permalloy (Ni80Fe20) nanowires (1500 nm width and 20 nm thickness) using the techniques of X-ray magnetic circular dichroism photoemission electron microscopy (XMCD-PEEM) to image the magnetic contrast in the nanowires, and single shot Kerr microscopy, which allows for dynamic measurements. The magnetic imaging yields the average velocity as well as information on the DW spin structure, whereas the single shot method highlights the stochastic nature of the DW motion.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Ferromagnetic nanowire, Domain wall dynamics, Spin torque

Zitieren

ISO 690

MOORE, Thomas, Mathias KLÄUI, Lutz HEYNE, Philipp MÖHRKE, Dirk BACKES, Jan RHENSIUS, Ulrich RÜDIGER, Laura J. HEYDERMAN, Tevfik Onur MENTES, M. Á. NIÑO, A. LOCATELLI, A. POTENZA, H. MARCHETTO, Stuart CAVILL, Sarnjeet S. DHESI, 2009. Domain wall velocity measurement in permalloy nanowires with X-ray magnetic circular dichroism imaging and single shot Kerr microscopy. In: Journal of Magnetism and Magnetic Materials. 2009, 322(9-12), pp. 1347-1352. ISSN 0304-8853. Available under: doi: 10.1016/j.jmmm.2009.06.048

BibTex

@article{Moore2009Domai-876,
  year={2009},
  doi={10.1016/j.jmmm.2009.06.048},
  title={Domain wall velocity measurement in permalloy nanowires with X-ray magnetic circular dichroism imaging and single shot Kerr microscopy},
  number={9-12},
  volume={322},
  issn={0304-8853},
  journal={Journal of Magnetism and Magnetic Materials},
  pages={1347--1352},
  author={Moore, Thomas and Kläui, Mathias and Heyne, Lutz and Möhrke, Philipp and Backes, Dirk and Rhensius, Jan and Rüdiger, Ulrich and Heyderman, Laura J. and Mentes, Tevfik Onur and Niño, M. Á. and Locatelli, A. and Potenza, A. and Marchetto, H. and Cavill, Stuart and Dhesi, Sarnjeet S.}
}

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