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  • Bonetti, Stefano, et al. (author)
  • Direct observation and imaging of a spin-wave soliton with p−like symmetry
  • 2015
  • In: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 6
  • Journal article (peer-reviewed)abstract
    • The prediction and realization of magnetic excitations driven by electrical currents via the spin transfer torque effect, enables novel magnetic nano-devices where spin-waves can be used to process and store information. The functional control of such devices relies on understanding the properties of non-linear spin-wave excitations. It has been demonstrated that spin waves can show both an itinerant character, but also appear as localized solitons. So far, it was assumed that localized solitons have essentially cylindrical, s−like symmetry. Using a newly developed high-sensitivity time-resolved magnetic x-ray microscopy, we instead observe the emergence of a novel localized soliton excitation with a nodal line, i.e. with p−like symmetry. Micromagnetic simulations identify the physical mechanism that controls the transition from s− to p−like solitons. Our results suggest a potential new pathway to design artificial atoms with tunable dynamical states using nanoscale magnetic devices.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Chen, Z. (1)
Eklund, Anders (1)
Bonetti, Stefano (1)
Backes, D. (1)
Kukreja, R (1)
Macià, F (1)
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Hernàndez, J. M. (1)
Frisch, J (1)
Katine, J (1)
Malm, Gunnar, 1972- (1)
Urazhdin, S (1)
Kent, A. D. (1)
Stöhr, J. (1)
Ohldag, H. (1)
Dürr, H. A. (1)
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University
Royal Institute of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2015 (1)

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