Direct observation of current-induced motion of a 3D vortex domain wall in cylindrical nanowires

Yurii P. Ivanov, Andrey Chuvilin, Sergei Lopatin, Hanan Mohammed, Jürgen Kosel

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The current-induced dynamics of 3D magnetic vortex domain walls in cylindrical Co/Ni nanowires are revealed experimentally using Lorentz microscopy and theoretically using micromagnetic simulations. We demonstrate that a spin-polarized electric current can control the reversible motion of 3D vortex domain walls, which travel with a velocity of a few hundred meters per second. This finding is a key step in establishing fast, high-density memory devices based on vertical arrays of cylindrical magnetic nanowires.
Original languageEnglish (US)
Pages (from-to)16741-16744
Number of pages4
JournalACS Applied Materials & Interfaces
Issue number20
StatePublished - May 15 2017

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