Research

Three-dimensional ferromagnetic architectures with multiple metastable states


Reference:

Nasirpouri, F., Engbarth, M. A., Bending, S. J., Peter, L. M., Knittel, A., Fangohr, H. and Milosevic, M. V., 2011. Three-dimensional ferromagnetic architectures with multiple metastable states. Applied Physics Letters, 98 (22), 222506.

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    Official URL:

    http://dx.doi.org/10.1063/1.3595339

    Abstract

    We demonstrate controllable dual-bath electrodeposition of nickel on architecture-tunable three-dimensional (3D) silver microcrystals. Magnetic hysteresis loops of individual highly faceted Ag-Ni core-shell elements reveal magnetization reversal that comprises multiple sharp steps corresponding to different stable magnetic states. Finite-element micromagnetic simulations on smaller systems show several jumps during magnetization reversal which correspond to transitions between different magnetic vortex states. Structures of this type could be realizations of an advanced magnetic data storage architecture whereby each element represents one multibit, storing a combination of several conventional bits depending on the overall number of possible magnetic states associated with the 3D core-shell shape.

    Details

    Item Type Articles
    CreatorsNasirpouri, F., Engbarth, M. A., Bending, S. J., Peter, L. M., Knittel, A., Fangohr, H. and Milosevic, M. V.
    DOI10.1063/1.3595339
    DepartmentsFaculty of Science > Chemistry
    Faculty of Science > Physics
    Publisher StatementBending_AppPhyLet_2011_98_222506.pdf: Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in: Nasirpouri, F., Engbarth, M. A., Bending, S. J., Peter, L. M., Knittel, A., Fangohr, H. and Milosevic, M. V., 2011. Three-dimensional ferromagnetic architectures with multiple metastable states. Applied Physics Letters, 98 (22), 222506 and may be found at http://dx.doi.org/10.1063/1.3595339
    RefereedYes
    StatusPublished
    ID Code24625

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