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Hysteresis-free switching between vortex and collinear magnetic states
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
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2014 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 16, 053002- p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate a lossless switching between vortex and collinear magnetic states in circular FePd disks arranged in a square lattice. Above a bifurcation temperature (Te) we show that thermal fluctuations are enough to facilitate flipping between the two distinctly different magnetic states. We find that the temperature dependence of the vortex annihilation and nucleation fields can be described by a simple power law relating them to the saturation magnetization.

Place, publisher, year, edition, pages
2014. Vol. 16, 053002- p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-224245DOI: 10.1088/1367-2630/16/5/053002ISI: 000335383800002OAI: oai:DiVA.org:uu-224245DiVA: diva2:715981
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Available from: 2014-05-07 Created: 2014-05-07 Last updated: 2017-12-05Bibliographically approved

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Östman, ErikArnalds, Unnar BMelander, EmilKapaklis, VassiliosPapaioannou, Evangelos ThHjörvarsson, Björgvin

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Östman, ErikArnalds, Unnar BMelander, EmilKapaklis, VassiliosPapaioannou, Evangelos ThHjörvarsson, Björgvin
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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