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Multilayered Core/Shell Nanowires Displaying Two Distinct Magnetic Switching Events


  • We dedicate this paper to the memory of Prof. Ulrich Gösele (MPI-Halle), whose support and input were crucial to our work.


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Atomic layer deposition (ALD) and electrodeposition are combined with a porous template to create ordered arrays of nanowires in which a nickel core and an iron oxide shell are separated by a silica spacer layer. The switching of each magnetic component is distinct and occurs at a field that depends on the tunable thicknesses of the various layers.